Sciuridology (SQUIRRELS) with Karen Munroe - podcast episode cover

Sciuridology (SQUIRRELS) with Karen Munroe

Jul 26, 20231 hr 38 minEp. 334
--:--
--:--
Download Metacast podcast app
Listen to this episode in Metacast mobile app
Don't just listen to podcasts. Learn from them with transcripts, summaries, and chapters for every episode. Skim, search, and bookmark insights. Learn more

Episode description

Flying squirrels. Fox squirrels. Giant squirrels. Tiny ones. Grey ones. Black ones. Fluorescent ones? Alie is losing her mind talking to dream guest and Sciuridologist, Dr. Karen Munroe. This Baldwin Wallace University professor has studied squirrels for decades and addresses where they sleep, how many babies they have, if they bite each other’s junk, how they find their acorns, Marvel movies, birdfeeder drama, imported squirrels, melanistic morphs, world domination, fistfights with birders, the rarest squirrel, the best place for squirrel tourism and more. You’ll scatter hoard so many nuggets of squirrel trivia. Enjoy. Follow Dr. Karen Munroe on Instagram and TwitterDonations were made to: Letters to a Pre-Scientist and Squirrel MapperMore episode sources and linksSmologies (short, classroom-safe) episodesOther episodes you may enjoy: Thermophysiology (BODY HEAT), Indigenous Cuisinology (NATIVE COOKING), Dendrology (TREES) with J. Casey Clapp, Urban Rodentology (SEWER RATS), Fire Ecology (WILDFIRES), Indigenous Fire Ecology (GOOD FIRE), Fulminology (LIGHTNING), Field Trip: Birds of Prey and Raptor Facts, Entomology (INSECTS), Mammalogy (MAMMALS), Carobology (NOT-CHOCOLATE TREES), Felinology (CATS), Chickenology (HENS & ROOSTERS), Oreamnology (MOUNTAIN GOATS ARE NOT GOATS)Sponsors of OlogiesTranscripts and bleeped episodesBecome a patron of Ologies for as little as a buck a monthOlogiesMerch.com has hats, shirts, masks, totes!Follow @Ologies on Twitter and InstagramFollow @AlieWard on Twitter and InstagramEditing by Mercedes Maitland of Maitland Audio Productions and Jarrett Sleeper of MindJam Media and Mark David Christenson. Co-Produced by Mercedes Maitland and Susan Hale. Transcripts by Emily White of The WordaryWebsite by Kelly R. DwyerTheme song by Nick Thorburn
Hosted by Simplecast, an AdsWizz company. See pcm.adswizz.com for information about our collection and use of personal data for advertising.

Transcript

Speaker 1

Get value.

Speaker 2

You can't argue with at Tesco with their amazing club card prices. Serve up something special with our finest meal deal for two starring one main, two sides and dessert for only sixteen EU row like succulent board, be approved IRUs shined a strip loin steaks with peppercorn butter, or delicious IRUs Chicken Parmesana served with creamy potato gritam and a mix of rainbow root vegetables. And enjoy Goozillionaire or Soldier caramel cheesecake. Can't argue with that shop instore or online. Tesco.

Every little helps available to most doores. Prices very express.

Speaker 1

Oh hey, it's your neighbor with the smelly trash cans. What's in there? Ali Ward, I am going to make this intro as short as possible because I've squirrels on my pants. I want to start this first things first, I wanted to interview this person for years. Somehow my emails never got returned, my dreams never materialized, and then one day I realized she followed me on social media.

Hot dang. I DMed her with so many exclamation points it was embarrassing, and from the first second of this interview. I'm losing my shit and I think you will too. So she got her undergrad in cell molecular biology at Arizona State University. She had a master's in ecology and evolutionary biology at Purdue, and then got a PhD in wildlife ecology and conservation back at the University of Arizona.

We're going to talk about it. She's now a professor of biology at Baldwin Wallace University in Ohio, where she has done many things, one of them co creating a full length dance work called Liars in fur Coats about the social and mating habits of squirrels. She's studied fox squirrels, gray squirrels, ground squirrels, and more for decades, and her handles on social media reflect this commitment. Squirrel doc it's linked to the show notes. Also linked patreon dot com

slash ologies for a buck or more a month. You can submit questions ahead of time and I might say your name with my face. Ologyes Merch is also linked to the show notes. And thanks to everyone who leaves reviews and subscribes. I read all of them, such as this one left this week by I family who wrote there are a billion podcasts, but not all are worth a regularly scheduled listen. This one absolutely is. Thank you so much. Also, I've been told that this particular episode

has the potential to make life good again. No pressure, So let's get into it. So scury ideology. It's hard to say, but it's a real word, people, and it comes from the Greek for shade tail. And we're going to talk about who's who and the family of scurity. I will also chat about the best part of the acorns.

How many trees squirrels plant, why they're so good at bird feeders, do they glow in the dark, what their chirps and barks mean, flying squirrels, ground squirrels, litter sizes, cozy nests, If squirrels love you back, they're absolutely glorious and terrible, sex lives, hoarding, hiding, gliding, conservation, statuses that might shock you, and why you should never never put a squirrel in your pocket before you board an airplane,

and so much more with mammalogist, biologist, and most importantly scuritiologist, doctor Karen Monroe.

Speaker 3

My name is Karen Monroe, and now you she her pronouns.

Speaker 1

My god, it's you it's really you, It's really me.

Speaker 3

I promise it's me.

Speaker 1

Literally, so many people in my life know today is a really exciting one for me. No chill, zero chill, whatsoever. And that is the correct way to be when talking to doctor Karen Monroe. By the way, do you know that scouriology? Do you know that? Have you ever heard the term?

Speaker 3

No, I've always referred to myself as a mammalogist.

Speaker 1

You're very good at squirrels, though, yes, And I just want you to know that out there in just the miasma of life and words, a scurtiologist is a term for someone who is very good at squirrels. I know this term.

Speaker 3

I believe you as I say. I've studied squirrels for a very long time, longer than I've been married. I mean since I was my freshman year in college, so since I was seventeen, I've studied squirrels. But I still to this day have active squirrel research because people are just fascinated by it.

Speaker 1

We love squirrels, but we're scared of most other rodents.

Speaker 3

Right. Why is that? It's the fluffy tail, isn't it.

Speaker 1

It's got to be. I mean, that's where they get their name from even right, I read the right.

Speaker 3

Shade tail, shade tail.

Speaker 1

Wait a second, Wait a second, Their tail is for shade partially.

Speaker 3

Sure, it's all kinds of thermal regulations, so you know, you can think of it as an umbrella if it's just kind of misting raining, but yeah, cover yourself in sun or you know, when they splat, right, so when they lay flat, they try to thrmw A regulate. You know, it's a wait for them to give off heat, pick up heat, however, you'd.

Speaker 1

Like more unbody heat in a bit. But we have a whole ding dang episode on thermophysiology and body temperature regulation as well as a kid friendly somologies episode on It was doctor Shane Campbell Stayton. But I'm getting ahead of myself.

Speaker 4

I got to.

Speaker 1

Admit I wanted to talk about squirrels for a long time, but I don't think I've ever talked about the function of a squirrel tail. And of course they have a function. They wouldn't have evolved to have it otherwise, right.

Speaker 3

And then like when you watch them jump and fall and stuff like that, they also use it to totally right themselves so that they land, you know, on all fours.

Speaker 1

That makes so much sense. Is it kind of like when you see a tightrope walker that has one of those really big poles.

Speaker 3

Yeah, absolutely, they kind of like, well, I don't know about pole, but yeah, Like at the Yankees game last day, probably ten people sent me this clip. There was a squirrel in the outfield and the fans were, you know, shocked by this. It's like running across and then it falls and it falls eight feet onto the ground.

Speaker 1

Now has it become a flying squirrel?

Speaker 5

Oh?

Speaker 1

This is not good. He sticks to landing much better than we would.

Speaker 4

I'll tell you that.

Speaker 2

Like y off to the races.

Speaker 3

And you just watch it and it kind of goes side to side to side, and like you can watch the tail kind of work as a rudder and then it lands just fine and runs away.

Speaker 1

Is there any part of that that also is just like a parachute to slow it down?

Speaker 3

About a parachute, I mean I think more like flying squirrels, right, like the gliding with that membrane really kind of is better to catch the mayor. But gray squirrels, which this was just a gray squirrel, they kind of use it more kind of as a rudder side to side.

Speaker 1

Oh boy, howdy. We will address different kinds of squirrels, gray fox, giant dwarf, flying marvel. But first let's talk about the specimen. Karen Monroe. I got to ask, how did you get? So I'm gonna say lucky that somehow life just shot doctor Karen Monroe down a path from the age of seventeen where she gets to study the most beloved woodland creature.

Speaker 3

There is the perfect confluence of luck and mistakes, I guess. So when I was in high school, right, my high school guys, so it was like, oh, you know, like biology, you should become a vet or a doctor. Right, that was pretty much the two career paths. And there was no way I could ever tell somebody they had to put their pet down. That was not even an option for me. So I was like, well, I'll be a doctor. I I like people and I really liked kids, and

so I was like, oh, I'll be a pediatrician. And my undergraduate advisor one of the smartest things he did was he made me go shadow a pediatrician for a week and I learned two very important things during that week long shadowing experience. One sick kids are no fun, oh no. Two parents of sick kids are even less fun. But he at that point had already enveloped me into his lab, and so I was working for him mainly

as an undergraduate. You know, hourly job collecting acorns and beating acorns to squirrels is part of his lab component. And I told my students all the time. After I figured out I did not want to be a pediatrician, I tried to find an area of medicine that I liked, and I really didn't. And I tried to find somewhere else for me to go, like, what is it that I really was interested in and what did I like?

And I ended up thinking, well, I was at this small, little arts college, and that if I transferred someplace bigger. So I was from a small town. If I went to some place bigger, I would have more opportunities than I could figure it out. And so I transferred from Wilkes University, which is at that time, I think thirteen hundred students to Arizona State University. Oh so across country. Yeah, yeah, thirteen hundred students to forty thousand students.

Speaker 1

Climate differences even.

Speaker 3

Yeah, climate, cultural, everything and anything you could possibly imagine what I really figured out and Arizona was that there were even less opportunities as a lonely undergraduate to get involved in research and really kind of figure out what it is I want to do.

Speaker 1

So Karen was majoring in cellular and molecular biology but couldn't seem to get lab experience in Arizona, so hungry for research, she would spend summers and spring breaks not getting crunk on four logos in Miami Beach, but had back to her small town to work on squirrels.

Speaker 3

And so I kind of did a huge one to eighty. So my undergrad degree is in cellular and molecular biology, and I went to Purdue and eventually ended up leaving there with my master's in ecology and evolutionary biology. But it meant I had to take all of those classes ecology, evolution and weal behavior, advanced mammology, all those kinds of

things I took as a graduate student. And that's what I kind of really started putting things together that like, oh, all this solemn molecular genetic stuff that I really liked in college, I could actually apply that to the squirrels and the systems that I do so very well from working in the lab. So that's kind of where my PhD ends up. My PhD is actually in a wildlife conservation management and it really is the confluence of those

two things. It's applying all the genetic stuff to an animal conservation concern was my original thought, but in that way to a group of animals that have a great conservation concern.

Speaker 1

Are squirrels in trouble? It seems they're everywhere. Maybe one tried to even steal your croissant yesterday. They seem like they're doing fine to some of us. But we will get into how different species are doing later in the episode. But yes, her interests and experience all converged to make her a truly lauded securadiologist. It sounds like one was that peanut butter and the other was the bread, and you're like, oh, I guess I get make a sandwich.

Speaker 3

You've got my chocolate, my peanut butter.

Speaker 1

So when it comes to your work, was there anything about the field work that you were drawn to or was it more systemic that you liked?

Speaker 3

No, it was much more systemic. I mean I really enjoyed the fact that I could walk and I do this now right, I walk outside and my study organism is right there. It's not like I need, you know, to get on a plane and fly three thousand miles with all this equipment and things like that. It's right there, which means it's successible and I can talk about it to the public, and I can talk about it to

my students, and so I really enjoyed that fact. At the same point, I've also worked places where I've had to drive six hours to the top of a mountain to work with the species, and so there are those distant and far away species as well. But I really like the fact that, especially as an undergraduate, you know, I would get on my bike and bike across campus and start trapping squirrels and making observations and things like that.

It just was so accessible. I think is probably the reason I really got hooked and involved.

Speaker 1

I gotta say, anyone who's listening to this who's like working on permacross stuff probably like, right, you were frequent fire miles. But still, the availability of squirrels, that's why we love them.

Speaker 3

That's what it is. And everybody knows them, and everybody loves them, and everybody, everybody, everybody has a squirrel story. Yes, you know, I go to dinners that have you know, corporate people and business people and whatnot. They're like, oh, a scientist, We're not gonna able to talk to you. And I'm like, I bet you are. I bet you, I bet you will. By the end of the night, you and I would be friends. And we love shared stories.

Speaker 1

Surely there are attention gathering no matter who you are, though, But where do squirrels live? Speaking of tundra and perma frost? What continents? Or rather, I guess where don't squirrels live?

Speaker 3

I think an articaus the only place squirrels do not live. Wow, you know from the Arctic circle down into the tropics, and you know from east to west across the way.

Speaker 1

So if you are on a continent, squirrels are native to it, except Australia, where American gray squirrels were introduced to Melbourne in the late eighteen hundreds and then a few days later a scurry of northern palm squirrels busted out of the Zoo and Perth and honestly, it's all over the place. How many there still are out there? Oh and squirrels are also not native to Antarctica. In case you're listening there, and I am impressed that you are and that you have Wi FI and I hope

that you didn't bring a squirrel there. And since you have such a systemic mind about that, what are squirrels doing right to not only capture our hearts, but also to be so omnipresent, to be able to live in all these different biomes? They figured it out kind of right.

Speaker 3

I mean, they're just so charismatic, right, Like they have the little pointy noses in the face, and you know, the hands and so you can sit there and watch them rotate the acorn in their hand and get it just right so they can take the perfect bite. They're not intimidating, right, even when they make noises and things

like that. I've had people like, oh, the squirrel is just saying hello as they're likep and like flapping their pail at them, and I'm like, you know, they're they're saying that you're a predator, and they're trying to make sure everybody else knows that you're a predator and and to get away. But I think that they're just kind of the right size and shape and they're just charismatic.

Speaker 1

From an evolutionary standpoint, What do you think has helped them survive on prairies and mountains and in the cold and in jungles.

Speaker 6

You know.

Speaker 3

I want to say that they're such generalists, kind of across the board, that they're willing to be just about anything, but that is not always true, because there are definitely cases where they really do specifically eat, you know, a very small number of plants. Things like that. I think of like ground squirrels really specialize in a plant type and their whole physiology and when they come out of hibernation or torpor really is tied to that specific plant

type and precipitation and things like that. But then I think of like the classic gray squirrel, and man, they will eat anything from plants to animals, eggs, insects, truffles. Human food is kind of the last resort. That's not generally what they're after. But their diet is so general and they have the ability just to their scatterholders, so they put a little bit of food here, there, there,

and there. They like to take things like mushrooms and fungi and up into the trees and they will dry it and then put it in their dray nests with them for the winter.

Speaker 1

No, wait, they have better meal planting than I do. Right, that's hurt so bad, And I'm really impressed.

Speaker 3

Right, I mean I've seen I have a you know, a squirl my neighborhood has taken you know, a chunk of a Halloween pumpkin and put it up in the tree to dry, and I'm sure it stored it away for winter.

Speaker 1

How many of our trees are because of forgetful squirrels?

Speaker 3

Almost all of them. I know for my undergraduate research that if a acorn is handled by a squirrel, even if it is half eaten by the squirrel, it will germinate better than an acorn that it's not been touched at all by a squirrel.

Speaker 1

So we owe so much carbon capture to squirrels.

Speaker 3

I mean they really are like the gardener of the planet half eaten.

Speaker 1

Really, Yeah, just saunter over to the nineteen ninety three paper Tannins and partial consumption of acorns implications for dispersal of oaks by seed predators, and you can get a little fat snack like germination experiments revealed equal or greater germination frequencies for partially consumed acorns than for the intact acorns, and they say, we suggest that the higher tannin levels may render the apical portion less palatable and thereby increase

the probability of embryo survival after attack by seed consumer, which would be the squirrel. I guess more delicious fat is at the top of the acorn. And remember this

for later, because something's gonna blow your mind related to this. Also, for anyone who has ever I don't know, found a handful of loose reesis pieces in a blazer pocket that I rarely wear, you should know that the tastier the acorn is, the more likely the squirrel says to itself, None of those other jabbroni squirrels are going to eat this good one, so they bury them farther away where they might not find them, which gives the acorn distance from the parent tree, which it needs to not get

choked out by its siblings. All of this drama under our noses, under our trees. Also, yes, I did eat the reesis that I found in my pocket, And no, I don't know how long they had been in there. How many acorns are boreal squirrels stashing away. I've read something that they really only remember like ten percent of them, or they don't even remember. They just look around and

be like, where might there be acorns? And it might have been someone else's acorns, but they're like, yep, they're acorns exactly.

Speaker 3

It's part of my under project. We tagged thousands of acorns and put them out in the forest little brad nails, and then walked for hours with a mel detector trying to recover acorns to see how far squirrels were actually dispersing them. And it's quite a distance. And they they are so smart. They know acorns that are infested with weevils or other insects that are not going to make it through the winter, and they will either eat them

immediately or excise the insect and then carry it. They will flip the acorn over, they will use their front and sizers to scrape out the cattle eating, and then stash it so that it won't germinate and it'll be there longer.

Speaker 1

So, yes, squirrels do not have a one hundred percent recovery rate with their food, all right, and they don't pretend to. It can range from twenty five to ninety five percent recovery rate depending on the species and area and food. But a ton of research has shown that squirrels have excellent spatial memory and they know to head back to their cash, But if they smell a neighbor's food buried on the way, they might eat that too. Also, according to the nineteen eighty six paper Gray Squirrel Food

preferences the effects of tannin and fact concentration. Squirrels know which acorn species are more perishable, and they may bury like red oak nuts because the last longer and germinate in the spring, but they might eat white acorns because they germinate earlier in autumn. Although years later scientists at Berkeley were like, not so fast. It might just be

that some acorns are just bigger. And it's like taking a few bites of a huge calzone in October and then just digging a hole in the backyard tossing it in there to snack on during the Super Bowl. Also scrape out the what the cot of lt who? Okay, so coda leedin. It sounds like a very expensive shade of paint. Everyone would be telling you to paint your kitchen, but it's actually an embryonic leaf or a pair of them, and they're in seas In an acorns, for example, it

stores a lot of energy. And while the squirrels usually only bury about an inch deep in the soil, their whole food festival area can be up to seven acres wide.

They're hard workers and also liars. So a two thousand and eight study titled cash Protection Strategies of scatter hoarding Rodent to tree Squirrels engage in behavioral deception, It showed that in about thirteen percent of caching events on a specific college campus, squirrels dug a hole, pretended to drop their acorn into it, but kept the acorn in their

mouths and ran away. And this may have been the result of just a lot of squirrels being around and they didn't want anyone to see where they were stashed

in their booty. And I didn't even think to ask this, But in the paper the researchers mentioned that they could tell which squirrel was which by noting distinctive markings, or, according to the study quote, others were uniquely marked with small spots of various brands of men's hair die applied with a plastic dropper from a short distance without restraining the animals, so squirrel researgers. They're just out there. They're

offering snacks, makeovers. And then in another study published in twenty seventeen out of UC Berkeley titled Cashing for Where and What Evidence for a mnemonic strategy in a scatter hoarder, that one found that fox squirrels buried their food in different areas depending on what the food was. So if they got a mixed batch of almonds and hazelnuts and pecans and walnuts, they spatially chunked their caches by not species, but only when cashing food that was taken from one

single location. And I'm reading this paper and I'm like, one of the authors is none other than doctor Michael Delgado, who was the expert in our legendary phelonology episode which I will link in the show notes. But the point is, these fuzzy little babies, they're organizing their dirt panchrees. And again, unlike me, they have apparently something akin to self control.

Speaker 3

You know, they only eat an acorn based on how much other food is available, because the plant's smart and puts tannins into the acorn, and as it gets closer to the cattle, lead and it puts more tannin, so it tastes more bitter, if that's possible. If you've ever eaten an acorn, it is incredibly bitter. But the constation of tannins increases as you get towards cuttle leed, and so they will just eat the top half of the

acorn and drop it. And so it is nice that kind of back and forth evolutionary adaptation between oaks and squirrels. But they do that for lots of seeds and things like that, so we really do have squirrels to thank for most of our trees and mature hardwood forests.

Speaker 1

For more on eating acorns as humans, you can listen to the Indigenous Colonology episode, which I will link in the show notes, is a great one. I'm so curious what a squirrel's yearly planner looks like. When are they sleeping, when are they up, when are they getting it on? What's their year look like at a glance.

Speaker 3

So if I kind of take a traditional gray squirrel north a record squirrel, so in the winter time, they're mainly active in the middle of the day, and that's when they're relying on most of their storage foods and things like that typically once you know, you start to get warmed up. I will say February, although the climate change is getting earlier and earlier, and I've actually seen

squirrels mate as early as December. Once kind of buds on trees start happening and things like that, you'll get the first round of reproduction, and squirrels will eat the inner camium off of tree branches and limbs, as well as other insects forbes, grasses, things.

Speaker 1

Like that innercmbium side note is part of a tree. It's specifically the sugary, really nutrient heavy layer of new growth. It's just below the bark. And we talk all about it in the Dendrology two parter with KCJ. Clap. But yes, some squirrels, thanks in part to climate change, are having steamy, romantic Hallmark holidays and canoodling in December, but usually they hold off until around Valentine's Day, when spring is spring, the days grow longer and the world grows ever hornier.

Speaker 3

Once young are out, usually it's springtime and food's abundant and available, and if the squirrels are in good enough body condition, they can reproduce again. So in a few weeks later, they'll kind of go through that whole process again. Most squirrels will not reproduce until they're about a year old, and so we can kind of classify typically sub adults are you know, juveniles you less than six months, and then subadults and then once they mate, we usually refer

to them as adults. So they don't ever really most worlds are not through hibernators. They'll go into torpor for a day or two and it's really cold. We know that they like to nest share a lot.

Speaker 1

Really, I love that. I love a co op.

Speaker 3

So if it's really cold out, why not get up with a bunch of your friends and all cozy and together and you know, save some body heat.

Speaker 1

It's like huga, It's like that Caandinavian concept of just like.

Speaker 3

Just snuggle down. And we know that different species they do it slightly differently. So in gray squirrels, they tend to be matrilineal, and so females attend to have some kind of related this will tend to nest together and there could be like little bachelor groups as well, kind of help save some of that body heat and whatnot. And they'll move from nest to nest from night to night. It's not like one nest, one squirrel, So they are kind of communal. They'll move from, you know, group to group.

Speaker 1

So no squirrels aren't setting up bring cameras and calling the cops if someone naps on their couch. And if you need a visual. Their dreys are like twigs on the outside forra structure, and then they're stuffed with a leafy lining for installation, and then there's like a little inner mattress of moss and fur. So when you see a clot of leaves in a denuded tree in winter, just think there might be a snoozing squirrel burpen up

your bagel in there. Just heaven. Well, okay, here's the thing I try to think about, like a squirrel home, and I always think about like a hollow and a log or something. Oh sure, but I live in California where we don't have the same sort of like bare winter branches that the East coast. We have a lot of palm trees, we got oaks. But I thought when I saw clots of nests in bare winter trees, I thought those were big bird nests. And someone to me

know those are scirrel nests. Yeah, how do they make a nest in the top of a tree on skinny bridges out of leaves.

Speaker 3

I mean you just kind of wove it in together, and there you can usually tell it's a squirrel nests and a bird nest from the doming on the top. Okay, So like when you look at bird nests, most of them are kind of flat and then you know, curved on the bottom. But drays have a shelter top, so they are kind of curved on the top, especially when they're being used a lot. As they become less used, they will sink down a little bit. But yeah, those big clumpy leafy pieces are squirreled rays.

Speaker 1

So a nest shaped like a bowl and for birds and a dray for squirrels is more like a bubble or a dome. And no, you didn't ask. But the study of nests is called nidology, and not two hours from me is the world's best museum of nests. It's called the Western Foundation of Vertebrate Zoology. It's in came Rio and it's home to more than eighteen thousand nest specimens. I want to go there so bad. But back to treeholes, and.

Speaker 3

They absolutely will use cavities too in trees, So like, a cavity is definitely prime location in real estate, particular if you're going to raise young, right, So like, if you want more protection from not only the outside sources, but predators as well, the cavities are the preferred location to raise young. But then you know there are issues with things like mites and fleas and things like that, and so squirrels do kind of move between nest sites.

Speaker 1

And let's say that you love a squirrel, you love all squirrels, and you would like to offer them a home in your yard. My dad and I shared a love of squirrels, and my dad built several squirrel condominiums and just hoped that someone would take up residents. I think you put a for rent sign on one. So is there a protocol? Is there a good way to attract a squirrel or say, squirrels, please, I would like to be your friends.

Speaker 3

I mean, certainly there are squirrel nest boxes that you could build and put out, and I've seen squirrels use nest boxes. But I think it kind of depends on where you are and what kind of scroll you want to attract, Like where you are ground squirrels probably have more ground nests than they do nests kind of up in the trees and things like that. But for those people who are in the Midwest and the East coast having oak trees, having edge of forests, gray squirrels really

love forest edges much like white tailed deer. They really like those highly overlapping branches. They like that high number of tree counts. If you are a true Midwesterner and you like those big, chunky fox squirrels.

Speaker 1

So these are the ones with a grayish brown fur, but they have rusty reddish coloring on their faces and paws and tails. And when I leave peanuts out for the crows, the fox squirrels come by and say thank you very much, and they probably pretend to hide it if they think that I'm watching.

Speaker 3

Which are easily twenty percent, if not fifty percent larger than gray squirrels. They really like a much more open park like place, and so they don't want lots of overlapping trees. They really want to come down on the ground and do their eating and whatnot down on the ground. And so it kind of depends on where you live and what kind of squirrels you really want to attract.

Speaker 1

I have to ask as a speridiologist, have you ever gotten in a fistfight with burders?

Speaker 3

So usually I mean, I've been asked to come and speak to all kinds of auto bond societies and the bird or groups and whatnot, and usually one of the first questions they want to ask me is how do I keep squirrels out of my birds? And so I do address this. I usually start off I was like, Okay, let's just you know, let's talk about the elephant in the room first.

Speaker 1

The first thing you do, you break a bottle on the side of a table. Listen.

Speaker 3

But I talk about how cool squirrels are to watch, you know, and we talk about a lot of their behaviors. When I go and talk in public about squirrels and what it is I do and why it's important, one of the first things I try to bring up is that it's really only here kind of in the US, that we think of squirrels as like pests and a

species to be managed. A species is hunted. Eighty percent of the world's squirrel populations are threatened or endangered, and I didn't expect that right and for that reason alone, you know, we should take advantage of the fact that we have this opportunity and try and study them and learn more about them so that we can help answer questions for those places. And a lot of it comes down to right habitat availability.

Speaker 1

Eighty percent of squirrels are in decline. Okay, So the International Union for Conservation of Nature's Red List of Threatened Species lists the Nemdapha flying squirrel, which is globally critically endangered. It's currently described by one known specimen that was collected in northeast India in nineteen eighty one. It's the sasquatch of squirrels. People think they see it sometimes, but they're usually confused and looking at a red giant flying squirrel.

And then there are eleven more globally endangered squirrel species, like the Northern Idaho ground squirrel there's only about thousand left, and Nelson's antelope squirrel, which is native to this vast California central valley that's mostly become farmland. I looked at pictures for longer than I needed to that analyope squirrel. Oh, it's a cutie. So we've all been distracted though by the really successful and ubiquitous park squirrels, and yes, sometimes

they're invasive, but meanwhile, other squirrels need our help. Well, they need their land back.

Speaker 3

Really, one of my favorite places to talk about squirrels is Japan, and really the only places you find squirrels anymore in Japan are the really old sacred shrines, because that's the only places left that have enough large old growth trees to support a population of squirrels.

Speaker 1

My gosh, just thinking about they're getting shrunken and shrunken. I didn't realize that they were so threatened. I would always think they must be a species of least concern because they're so visible, and that's so fascinating. And I'm also wondering how many kinds of squirrels are there, and what's the difference between a ground squirrel, a tree squirrel, a flying squirrel. Where's chipmunks in this mix? Who are they?

Speaker 3

Etrepents are cousins. They're a cute cousin. We keep them in along with the groundhogs and okay, other marmots and things like that. I believe I had to look this up actually because I wanted to make sure I gave you the correct number, because I believe two weeks ago whatever, there was a publication about a new species of squirrel found. So I believe we're up to two hundred and eighty nine species of squirrels worldwide, fewer.

Speaker 1

Than I thought to be honest, right around three hundred species from ones that glide where zip lines wish they could go to ground dwelling tunnel cuties that I want to kiss, but I won't.

Speaker 3

It really comes down to where they're used to nesting. What do they prefer, You know, tree squirrels versus ground squirrels. Flag squirrels are definitely a different grouping a lot of physiological differences or anatomical at least differences there. But I mean tree squirrels, I think they're usually what's people picture when they think about a squirrel with the fluffy tail

and everything. Ground squirrels, to me, are even more fascinating, if possible, because we know a little bit less about them. You know, they're underground doing all those things that we can't really see, and I really want to know what they're doing under there. But they are highly related. They have lots of the same kinds of timings and activities and behaviors for sure.

Speaker 1

So to recap the family securited eye is in the order Rodentia, and it involves squirrels and chipmunks and even marmots and prairie dogs. But there is a smaller genus of just squirrels. But in general, all of these squirrels we're talking about may live in trees or the ground or have wildly different diets and lives, living up to ten years in the wild or twenty in captivity. Imagine a squirrel that could legally get a driver's license, but

not really because it's a squirrel. You've had the privilege of being in this field since a young age, and technology has changed so much. Have you seen things change in terms of knowledge now that we can put a fiber octave camera and record on a tiny SD card that costs a dollar? Like, how has your work changed now that you can spy on them?

Speaker 3

And so for my dissertation, I study the species of squirrels called the round tailed ground squirrel. It does not have a roundtail. I don't know why it's called that.

Speaker 1

You didn't name it.

Speaker 3

I didn't name it. It looks like a little baby prairie dog and has kind of a long, thin tail, and they live in the ground in the desert, and so we really wanted to know how social these squirrels were. They were once thought to be this great model outlier in that the literature and all of the models say they should be very solitary and alone. But the two papers that were published in the mid seventies said, no, they are highly social. They're like prairie dogs. They formed

these family groups. You know. Oh my goodness, they've all these social behaviors. Da, da da. And so one of the first things we want to know is, Okay, so they're going down and there, you know, holes, entrances everywhere, How manys are really connected? What are they actually doing down there? Is there a lot of social behavior going

on under the ground. And my field site was the Costa Grande Ruins National Monument in Culi, Arizona, where there are sixty nine recognized archaeological sites within one square mile. Oh my god, it's a beautiful, stunning place. But there was no way they were about to let me dig up and look at a ground squirrel burrow in any way,

shape or form. And in my four years working there, they did bring in an expert that had ground penetrating radar, and they were using it to look at some of their archaelogical sites, and we were actually able to try and use it to kind of map out a burrow area, and we weren't incredibly successful, not as much as I

wanted it to be. That was a long time ago, but now I think right in terms of fiber optic cameras, yep, you can just slide one of those right down and in and and sure enough really see the extent of the burrow, and possibly you could actually even leave the camera down there and see any kind of social behaviors and actions and things like that. I know I was there to study their mating system and things like that, and I never saw squirrels mate because they clearly were doing it underground.

Speaker 1

I guess they like their privacy.

Speaker 3

I suppose we saw evidence mating. We saw coppleatory plugs and things like that, but never an actual meeting copulatory plug. Copulatory plugs really, yes, So coplatory plugs are this prettius gelatin piece that males will deposit in the female reproductive tract to try and stop her from meeting with any other males.

Speaker 1

Well, that's the divs.

Speaker 3

And lots of squirrels have this. Lots of mammals have these, and in most of the time, in just about all the squirrels I've studied, females will just take them out and made again.

Speaker 1

Oh, this drama continues, literal cock blocking, actual cocklocking going on in squirrel romance. But before you go around flipping the bird to insecure male squirrels, please know that copulatory plugs are also common in some primate species bees, kangaroos, reptiles, rats, rodents, mice, scorpions, spiders. But back to squirrels. We're talking about squirrels, So ground squirrels might keep this jiz tamp on in for almost

a day. But I found a study in the Journal of Mammalogy titled Removal of copulatory plugs by female tree Squirrels, which described these in fox squirrels and Eastern gray squirrels as quote opaque white with waxy to rubbery consistency. And if you're eating right now, I'm sorry, And also that's not my fault. But now that the scene is set,

both visually and from a tactile perspective, it continues. Although copulatory plugs are hypothesized to prevent the successful copulation of subsequent males, female tree squirrels often remove the plug within thirty seconds of copulating and either discard or consume it. Y eat it or eat it. Babies eat it or eat it. He's not the boss e, you can. They have litters with different paternal es. Say how many uses do they have? They have one big.

Speaker 3

It's kind of this weird corkscrew kind of shape, futerous and so round tailed ground squirrels. I had a litter of thirteen squirrels for one of my females. I would say the average was usually three to four, and in eastern gray squirrels the average litter size is between two and three. But absolutely those squirrels can be sired from different males.

Speaker 1

Okay, so usually just a few baby squirrels or kits. Sometimes they're called kittens unless you have thirteen at a time. And perhaps that squirrel mom is related to my Catholic grandmother who had eleven children by the age of thirty and stark white hair. But let's get off the topic of my deceased and beloved Catholic grandmother and talk about group sex in your backyard.

Speaker 3

We know that females will mate multiply. Female gray sqirls will mate multiply. They're only an estress for eight hours, so they're only receptive to mating for eight hours. And in that eight hours, I believe the published number is twenty four males. She will meete with up to twenty four males in that eight hours.

Speaker 1

Oh get it?

Speaker 3

Girl?

Speaker 1

Is that eight hours a day or a year.

Speaker 3

A mating season maybe twice a year?

Speaker 1

Wow? So she goes fast and hard yep. And then is there any paternal care or are they just like I don't even remember, there's so much it was an orgy.

Speaker 3

Nope, Nope, just there and gone.

Speaker 1

See it never And if they can reproduce like more than once a year, do they tend to give a lot of resources to their young or is it kind of like we just kind of make as many as we can and then you know, we wish.

Speaker 3

Them well, I mean, and we know that lactation is incredibly expensive. And they tend to stay in the nest for probably six eight weeks with mom after that, and then you can actually watch them. It's one of my favorite behaviors to watches. You'll watch the juveniles come out of the nest and kind of play, and then you will see the female you'll see mom come out and basically just yell at them and chase them off, and then they'll come back and at the end of the

night everything. But it's kind of this, you know, vitualized, like you kids, you start, you quit this, you don't go get out.

Speaker 1

What about rat kings in squirrel nests. I've seen SAPs that canclude their tail together. It makes me want to throw myself in the ocean. I can't. It's the saddest, cutest, most terrible thing I've ever seen. Yeah, okay, I explain that partly, but sometimes squirrel tales will get glued together by tree sap. And we discussed this notion of a rat king in the Urban Rodentology episode with doctor Bobby Corrigan.

But it's just awful. Please call a wild life rehabber and unless you see it in real life, don't look it up. Don't look it up. Don't look it up.

Speaker 3

I get people all the time who call me with baby squirrels who have fallen out of nessa and things like that, and that is that is not my jam in any way, shup perform. I have several well lifereehabbers on call, and so I send them to places much

like that. But I will also get calls about squirrels who have mains who've lost fur because I have a flea infection or something, and you know, I just I tell people like they know what they're doing, they know how to treat it, let them go and they'll be Okay.

Speaker 1

What about redenticide? Is that a threat since some of them are generalists.

Speaker 3

Absolutely? Yeah. I've definitely worked in places that it's one of the main ways that they will control squirrels, particularly ground squirrels, when they don't want them in a place. Mm.

Speaker 1

I mean, I feel like gophers are like everyone has a gopher. The culturally it's people are quite unfair to go first, right, But two ground squirrels cause that kind of damage to like lawns and sports fields and stuff like that.

Speaker 3

They can, Yeah, I certainly can.

Speaker 1

And now a once in a lifetime chance to ask a personal burning question. I cannot believe that I have the opportunity to ask a ground squirrel expert about some hazing that I got from a squirrel. Okay, can I play you a noise and can you tell me what's going on?

Speaker 3

Sure?

Speaker 1

Okay, I was having a bad day last week, you know me I get personal here. I was bummed, and my husband's like, let's go to the park and let's walk around. And I was like, that's a good idea. We did, and then this squirrel started yelling at us.

Speaker 7

This might hurt my heart what you have to tell me, But that's okay.

Speaker 1

He little guys, poor girl is hanging out just a bush, maybe five feet away from us.

Speaker 3

Call you a predator, Well, California ground squirrel probably is young down in the burrow, and so it's just kind of that warning.

Speaker 1

We're such dipshits here. We were standing there longer because we're like, does she need help? Like is she the lassie of a squirrel family? Like we were like what do we do? And then the whole time she was like away, I hate you, But I mean there's a reason why dog speaky toys sound like that right right exactly.

Speaker 3

And and really if you did not know right where she was, it would have been hard for you to locate it. It's a single tonal whistle. It's really hard from a million predator to echo locate that and figure out exactly where that is.

Speaker 1

Oh so she probably had some cute little bit is that we're underground not far from us. Yes, And if you've ever heard chirping or barking coming from a squirrel, there are correct terms. I just learned that scour idiologists have words for those like barking, like clicking Donald duck calls.

They're called cooks, quaws, and moans. And according to the paper Joint Tail and Vocal Alarm Signals of Gray Squirrels in the Journal Behavior, researchers from the University of Miami flew gliders painted like hawks, and they drove robot cats around campus towards squirrels, and they found that only sweeping back and forth tail movements known as flags and vocalizations

called mons are associated with a certain predator type. Mones happened more often when there were aerial predators present, and the flagging with the tail happened when the cat approached. But they also found quaws more strongly associated with aerial threats too. They might also clack their teeth at other squirrels. But my point is that if a squirrel is chirping at you and twitching its tail, it wants you to please go to hell. It hates you. I've never seen so many ground squirrels in my life.

Speaker 3

I was like, that's awesome.

Speaker 1

I mean they were everywhere, and this was a couple of weeks ago, so this was like late spring. Would there be a reason why they were out so much or do you think it's just a really good place for ground squirrels because the oak trees.

Speaker 3

Now I think it's probably just a great place for ground.

Speaker 1

Squirrel it's just a party. Oh that's exciting.

Speaker 3

I know. When I started to study Aroundteil ground squrels, I was trying to find a population that would be good to study, and I was having a hard time kind of really locating a good dense population. And I actually went to some snake researchers and I was like, could you look at your records and tell me, like where you have good populations? And they came through. I mean, this is you know, perfect confluence.

Speaker 1

Oh, no, one tell the snakes because like they're gonna blow up this restaurant.

Speaker 3

But the squirrels, you know, they have a relationship with the snakes as well, Like it's not like every time the snakes heeds the squirrel, the snake gets the squirrel. The squirrels fight the snakes. Right off, I saw a pregnant female totally chase off a rattlesnake. You know, you could tell from the roundness of her belly that she was pregnant and kind of the sneak was just coming through, and she started on high alert and let everybody know.

And when it's a ground predator like a snake, they will also thump their back deep let anybody underground also know that there's a snake. And she just completely chased them away, and it did not bite her. Did you really try to bite her? And she just kept pouncing on it and forcing it away.

Speaker 1

Okay, So I'm learning squirrels are cute and beautiful and they also.

Speaker 3

Will talk shit. Oh they're badasses.

Speaker 1

Yeah, and they'll cut you.

Speaker 3

We know that they have some resistance to some venoms and possibly even some rattlesnake venoms. We don't know quite how much, but certainly they have some resistance.

Speaker 1

In all of your work, have you ever been bit by a squirrel?

Speaker 3

I have never been bit by a squirrel.

Speaker 1

Oh, I'm knocking on so much wood.

Speaker 3

I have come close once and gotten a blood blister from kind of getting squished. But when we handle them, I use a cloth handling that's in the shape of a triangle. I actually usually describe it as a giant pastry bag. So if you imagine a giant pastry bag made out of like a dena material. We wrap the wide end around the trap opening because it's really easy to catch a squirrel, peanut, butter, sunflower seeds, things like that. But then you have a very angry squirrel in a

metal cage. And so if you wrap the big end around the trap and open the door, the squirrel does not want to be in the trap and will run out and basically run into the narrow end and basically just wedge themselves into this pastry bag. And it's like being the same like being swallowed physiologically. So they're in there, they're all kind of nice and tight, their eyes are closed, usually their nose kind of sticks out the very end, and they're very calm, and they can open their mouth

to bite me, and therefore I am very calm. They're not trying to run away, they're not trying to move or anything. They're just basically chill.

Speaker 1

Yeah, of course, I look this up and I found fieldwork photos of doctor Monroe on a campus lawn in her lap a pillowcase sized dark blue canvas, Sack pointed one end. She is wearing a school bus yellow T shirt and it matches the shirts of her student assistance. And there's a small logo over the breast and official seal of some sort. But on the back of the shirts, in bold lettering, it reads, it's the squirrels. They're watching me.

What kind of alien abduction of science do you have to do in order to make sure that their population is healthy?

Speaker 3

Like?

Speaker 1

Do you have to weigh them? Do you have to take their temperatures? You have to check them for fleas? Like what kinds of things are are scientists looking for?

Speaker 3

Right? So there's usually this is everything that we're doing. So we catch them, we weigh, then we take a whole set of morphological measurements. Right. We want to know not just how much they weigh, but you know how much of that is fat versus bone and things like that. Certainly I look for flea infections. I usually feel around, see if they have any broken bones, check their tails. I usually will check to see if they're pregnant or

if they're lactating or things like that. Check to see if the males are actually active in reproduction, and then we mark them so we put unique colored ear tags, usually numbered and colored ear tags ears. And when I

do that, I take a DNA sample. And then sometimes if we're going to see how far they're going to go and things like that, we can put a radio collar on them, which is a necklace weighs less than five grams, and then we can kind of get an idea about, you know, the number of male's, number of females, number of juveniles and things like that.

Speaker 1

If there is one that's injured or has an infestation. Can because you're a researcher and not a wildlife we have or where's the line between getting it help and letting nature do its thing? How do you decide?

Speaker 3

My general default is to let nature tickets. Course, I usually think if it's something that I personally have caused. I definitely have had a squirrel to kind of get a piece of skin, you know, on their nose or whatnot, scratched from the mal trap or whatever. I will tend to swipe a little piece of you know, spooring on that nose before I let them go. But generally speaking, I let nature tickets. Course, I have not ever come across a squirrel that I've needed to do something significant

about and I'd like to keep it that way. Yeah.

Speaker 1

I mean I feel like they just probably got wind of you and just respect you a lot. I think probably.

Speaker 3

Well, it makes it so much easier if they would just kind of stand up and be like, Hi, I weigh two and fifty grams. Here's my measurements. I'm not fragment.

Speaker 1

I'm a real knocked up right now. A great time a couple months ago. What about I have a million questions for you. I cannot tell you how exciting this is. If you could stand on a cosmic soapbox and have the biggest bullhorn ever to bust some flim flam about squirrels. What is the biggest misconception that you're like people.

Speaker 3

It's not like that, I would say. People often ask me about rabies, like I'm afraid to catch rabies and things like that. And there's never been a case of a rodent carrying rabies, and so there's never been any kind of report of squirrels carrying rabies. And so that's

why I don't mind working with undergraduate students. With them, I'm always present when undergraduates trapped, But really the only thing they carry is tetanus, and so as long as students have had their tennis shot, I'm generally not so worried.

Speaker 1

You were an Arizona, and I feel like in my brain someone says, squirrels Arizona bubonic plague plague? Yes, did I make that up?

Speaker 3

So bubonic plague is definitely a thing to be worried about. When I work at the Kassa Grunde Ruins since the National Monument, they would have their fleas tested all to see if there was any chance of plague. Unfortunately, all four years that I was there, there was no chance of plagu.

Speaker 1

Okay, So, according to the CDC, small rodents like squirrels and hamsters and kuinea pigs and chipmunks and rats and durbils and mice and bunnies are almost never found to be infact with the rabies and they have not been known to transmit rabies to humans. However, groundhogs they got a little more chunk of their trunks, they have bigger bodies,

so they do get reported as rabbit from time to time. Now, the bubonic plague has been transmitted by fleas on ground squirrels and wood rats and prairie dogs, but it's very rare, and please, I beg you to channel your anxiety towards really anything else or as a Slate headline from the summer of twenty twenty, red, you do not need to worry about the bubonic plague squirrel in Colorado and just reading that, like, wh what a time, what an eventful few years it's been on planet Earth? Just can we

catch a break? But if you do feel very sick and have giant lymph node area nodules, just please see a doctor if you're in trouble. Speaking of being in trouble and confronting that sweet sweet ache of mortality.

Speaker 3

The most endangered mammal in North America is a squirrel species. The Mount Gram red squirrel is the most endangered mammal in North America. Now it only resides on one mountaintop. When I was there studying them, their numbers were probably in the two to three hundreds. I can say that a few years ago they were down below one hundred. They've kind of come back a little bit.

Speaker 1

But is that all habitat loss or climate?

Speaker 3

It is a The Mount Graham is a whole ecosystem of a mess. So yes, there's a lot of habitat loss. It was slated to have two dozen telescopes built on the top of the mountain, and they were denied and some were built, and then there was an insect infested it's sacred in American land. There was a several large forest fires. There's an endangered raptor that comes through that

eats them. There's an introduced squirrel. I mean, like every plight that has affected an endangered species is there on the one mountain top.

Speaker 1

It sounds like they were cursed by a witch. Oh boy, So now it might be an okay time to tell you that we have episodes on fire ecology, indigenous fire ecology, fulminology about lightning strikes that cause forest fires, and a recent field trip episode about raptors. All link them in the show notes. But yes, Mount Graham is a ten thousand foot tall peak in the southeastern corner of Arizona. So this Mount Graham red squirrel. It's about eight inches long.

It has dark gray brown fur and a white belly. I want a pet. And it enjoys a diet of seeds and pine cones and air dried mushrooms. Now, this crater is endangered, but at one point in the era of Camaros and Aquinet there was no home.

Speaker 3

They actually thought that they were extinct into the mid eighties and a hunter brought one in and wild effeers were like, oh, that is not the aport squirrel that you should be hunting. That is probably the endangered montgomer And squirrel.

Speaker 1

That must have been a huge day in the scarritiology community. Yes, they must have been popping bottles. I know that they couldn't text each other, but they must have been paying long distances to be like, yes, yeah, I like Barbie, I got some news that is so exciting. What about tiny squirrels on the big screen? Is there a favorite squirrel in film or TV that you're like, they got that right? Or I like that one?

Speaker 3

You know, I do love me a scrat. I keep waiting for squirrel Girl to come out. I have a number of squirrel Girl paraphernalias in my office and things like that. She was supposed to be in so many Marvel superheroes. I have so many figurines of her. I cannot wait for her. Doreen to come out and show everybody what a badassh you really is, because you know, supposedly is kick Deadpool's ass. You know, thunis ass, you know Wolverine like she is just as bad ass in

the Marvel world. And yet I'm waiting.

Speaker 1

I'm waiting just a short ps. So La is very small. And I happen to know Milana Wintrope, the actress and the director who was slated to play squirrel Girl for Marvel, and I texted her. I told her that she has a friend in the squirrel world, and she said that that was the most giantest honor I know, and she'd pass it along to Ryan North, the comic book creator, who is the real hero, she says, behind squirrel Girl. And also there's a six episode scripted podcast series starring

Milana called Marvel's squirrel Girl The Unbeatable Radio Show. But if you want that movie or TV series, just feel free to get those petitions going, folks, oli JITs. I have faith in you. Can I ask you listener questions? Sure, I told them you were coming on. I told them that this was the best day of my life. But before your questions, each week we donate to a cause of the ologist choosing, and this week we're going to

split it between two for Karen. One is letters to a pre Scientist, which connects students to STEM professionals through snail mail to broaden students awareness of what STEM professionals look like and do it work. And the other is to squirrel Mapper, a community science project that helps researchers identify populations of squirrels and their morphs. Why they ask because together we can crack this nut. So find out

more at prescientist dot org and squirrelmapper dot org. And those donations were made possible by sponsors of the show. Get value.

Speaker 2

You can't argue with Ottesco with their amazing clubcard prices. Serve up something special with our finest mail deal for two starring one main, two sides and dessert for only sixteen euro like succument Board, be approved Virus Shine a striploid steaks with peppercorn butter or Delicious Virus Chicken Parmegama served with creamy potato, Great time unto a mix of rainbow root vegetables and enjoy Goosillionaire or sold to caramel cheesecake.

You can't argue with that shop instore or online. Tesco. Every little helps. I've been able to most doors prices very in express.

Speaker 1

Okay your questions. Let's start with one about goth squirrels, shall we asked by Cooper Moore, Kyler Murphy and Clay Mormon, who says I've seen a ton of melanistic gray squirrels in Ohio and Toronto, but none in New England. What's the deal? And Jess Trezon has seen them in central Illinois but almost none in and around Chicago. Huh populations pockets of squirrels like the all black squirrels in DC. Absolutely yeah, the Canadian black squirrels. How did they get

to DC? And also, LA not supposed to have a lot of fox squirrels and yet here we are, They're everywhere. How did these Canadian squirrels get to DC?

Speaker 3

People love squirrels when they move them everywhere, that's the easy answer, right So here I'm here in Ohio. And the very classic ancer is that a man went on vacation in Canada, found these black squirrels, fell in love with them, caught ten of them, brought them back and released them.

Speaker 1

So, like anything having to do with love and smuggling, it's complicated. But the Smithsonian in Washington says that it has the receipts dating back to the year nineteen hundred when this superintendent of the National Zoo, one Frank Baker, was thirsty for the squirrels that Canada had and got about eight or ten of them sent and they were the talk of the town at this zoo in Washington, DC.

And six years a few litters later, they were like, listen, the gray squirrels here in Washington are getting hunted too much. What say you to a little city upgrade by releasing a few of these melanistic ones just on the zoo grounds. Of course, that didn't go as planned. Nature finds away, and so the squirrels that you see in some parts of the Northeast sporting this lustrous jet black fur are technically gray squirrels.

Speaker 3

It's a single gene. If you're missing one little part of your gray gene, right, you become this dark black squirrel. If you get both copies are black. If you get one copy, you're just kind of more grayish and you're missing your white belly and things like that. But certainly, I mean, we have black squirrels here in Ohio. They are coming kind of moving down from Canada and dispersing down and once the trait gets into the population. It

just spreads. It's a dominant trait, so if you get one gene, it's going to be expressed, so we see them more and more and more. I'm only to bet that there is probably some thermal regulation advantage, but no one really knows why Listen.

Speaker 1

I know not everyone has a thermophysiologist that they can text on a whim, but I hit up my friend doctor Shane Campbell Stateton of the Thermo Physiology episodes, and he said, I would imagine being able to absorb more heat from the environment during a time when heat is at a metabolic premium like winter, would have clear benefits. However, there's also a trend called glue Boers rule that says

mammals should get lighter toward the polls. Ultimately, it probably comes down to which aspect of the environment is the biggest challenge, he said, And sure enough, yep. Research has shown that black mammals have eighteen percent lower heat loss in temperatures below negative ten degrees celsius. And also when it comes to these squirrels, that darker morphs may survive the city better because researchers say they're more visible to drivers who are looking to avoid squirrel murder on their

way to the post office. But remember this morph didn't evolve to live in this part of the continent. And now also is a great time to plug doctor Shane Campbell Staaten's new and really stunning PBS show called Human Footprint, which just premiered a few weeks ago. I've known he was shooting it for years. I'm so excited for you to see it, so I'll link it on my website. It's called Human Footprint on PBS. You can look it up.

But yes, any melanistic squirrels in DC are likely descendants of Frank Baker's quest to populate the nation's capital with pretty little squirrel baby.

Speaker 3

People always say that they're smaller, or they're meaner, or they're more aggressive, and I've not seen any of that in my studies. They weigh the same as gray squirrels. I've definitely seen litters that are mixed black and gray.

Speaker 1

Maybe different dance.

Speaker 3

Possibly different dance, I mean, but yeah, I mean, it's just you know, Burnett's versus Blonds.

Speaker 1

Al Ham is a first tip question asker who appears to know a little bit about this and asked, are the black squirrels introduced to several areas of the USA, like Kent, Ohio, Holland Michigan, some areas of Arizona, et cetera. Are they considered feral or because they were maybe escaped pets or does that even matter at the end of the day, most of.

Speaker 3

Them, it doesn't matter. So gray squirrels, whether they're black or gray, have then been introduced all over the world, and they typically will cause trouble wherever they go. They are able to outcompete most of the other squirrel species, and we don't have a really easy answer as to

why why that might be. But people just love squirrels, and so they take them and introduce them places where they really shouldn't be, and places like California where there is say, western gray squirrel, the western gray squirrels are getting outcompete by the Eastern gray squirrels. Same kind of thing in Arizona, same kind of thing in England. In Italy the reports of Eastern gray squirrels in the hazel

nut farms. That's a problem economically. And then if they are somehow able to get over the Alps, they'll be into Asia and they easily spread all over Asia. And so there are a lot of management concerns with people releasing pet gray squirrels, and there are lots of conservation organizations looking to rain them back and control them and manage those populations.

Speaker 1

I had never even thought about it. If you've got an almond or a walnut orchard, do they just not like the tannic whole of those nuts?

Speaker 3

Right? It's so much better. Why would you bother eating an acorn when you can eat an almond or walnut or a peanut.

Speaker 1

So then I wonder what almond farmers and stuff do about that. I definitely see a lot of owl boxes near orchards, which you know, Okay, So I did look this up and catacomb of web page led me to something called uc Integrated Pest Management Program, which said deep plowing, also known as ripping along perimeters of fields will destroy burrow entrances and will help slow the rate of ground squirrel invasion in orchards. They also say burrow fumigants, toxic baits,

and traps currently are the most effective control methods. And I feel like I say this all the time, but on the topic of human footprints, even the most well meaning diet still affects the ecology. It just does. I have no answers for you, just an urge to have perspective. Okay, moving on. I thought this was an absolutely unhinged question, and I'll ask it Kate Webb for some question. Asker says, there are species of flying squirrel in Michigan that fluores.

Speaker 3

Yes, we didn't know that they'll just a few years ago, no one had any idea and they accidentally turned on a black bl and it was like, oh crap, this is like right pink, right purple. It's pretty amazing.

Speaker 1

For more on this, you can see the paper using mass spectrometry to investigate fluorescent compounds in squirrel fur, which will treat you to the visual of this fuzzy, furry flying squirrel cradled in the palm of a researcher exposed to black light, and the squirrel's belly looks like a neon pink hallucination. Why is this happening? Well, like many things,

no one knows shit. But some scurritiologists hypothesize that fluorescent coloration on their bellies may help camouflage flying squirrels against predators that are UV detecting, like owls. Because there are plants and lichen that also glow similarly, also might be for mating, might be a communication tool as a human. You would need a canon event level breakup and a quart of menic panic to achieve it. It's amazing twelve out of ten. Oh, that is like the Bob Marley

poster that no one knew that they needed. Is there any reason why these squirrels would fluoresse? Kate Web wants to know.

Speaker 3

I mean they can see each other, other things can see them or not see them. Right, The amount of UV radiation that happens at night is very different than the amount that happens during the day. The types of you know, eye receptors and things like that.

Speaker 1

Do you think that they are better equipped to see that?

Speaker 3

Yes?

Speaker 1

With night vision? Yeah, which brings me to Madison Hunter's question says, not sure if you will cover flying squirrels. But I had one as a pet when I was in middle school and I noticed it was quite active at night. And Madison says, I would usually play music to sleep, and I often caught it doing what appeared to be dancing to the music. Do you think it's possible that squirrels get down?

Speaker 3

Let's boogie. I've never personally seen it. I don't want to say that it couldn't possibly, but I've never seen it.

Speaker 1

And what about the nocturnal versus diurnal like is it totally depend on the environment and the squirrel So.

Speaker 3

Really there aren't very many tree squirrels or ground squirrels that are not turtle. Usually it's the flying squirrels that are nocturnal.

Speaker 1

Oh and those again in Leeland, like those words, are flying squirrels closely related to walking squirrels or is that name just a misnomer?

Speaker 3

It's just a total misnomber. They don't fly at all. They glide right, there's nothing. They have no capacity to actually gain lift by you know, flapping or anything. They literally are just taking advantage of the ability to get from point A to point B much faster by gliding than by going down the tree, running across the ground and going back up the tree.

Speaker 1

But thems is squirrels, Yes, okay, absolutely so, everyone such as Donnia Khan, Arena Disaso, Aaron and Anderson, Britney Shafis, Francis Hirst, Brubaker, Kimberly, Bryant, Hudson Ansley, and the squirrel queen who asked about flying squirrels. The expert word is, so the flying is a no, The squirrel is a yes, yes, yes, Okay, Oh my gosh, I've never seen one in person, but so.

Speaker 3

You need to go to Japan. So one of the questions I almost always get asked is what's your favorite squirrel? Oh, they're like children. You cannot pick a favorite child. But if you're going to press me, I will typically tell you it's the two Japanese squirrels. So the Japanese pigmy dwarf squirrel, which is teeny tiny little puffball, and Musasabe. Musasabi is an eight pound flying squirrel.

Speaker 1

What that's a baby. That's the size of an infant human.

Speaker 3

It's like the size of your housecat. Right, And so when it glides over your head, it's like somebody has hurled a trash can lid over your head. Speeds up to thirty five miles an hour when they hit the tree. When they you know land, you can just hear this slam, and then you hear them kind of climbing up and

then they'll take off again. So I want you to picture a group of researchers in a very sacred Japanese shrine at two three o'clock in the morning with our red head lamps on, running from tree to tree as we try and follow these musasabe. I was for sure like they're going to be headlines, you know, American squirrel research arrested.

Speaker 1

Well, someone asked if there was a black squirrel lab breach conspiracy, AZM. Have you heard that they escaped from a lab? Is there a conspiracy about this?

Speaker 2

No?

Speaker 3

And generally speaking, you know, picking squirrels inside is not always like good thing. They really do chew everything. I would not want a lab full of squirrels in any way, shape or form. Squirrels stay outside, is what I always tease my students.

Speaker 1

If you had a pet male squirrel, would it be so horny all the time, because that must be why they have giant falls?

Speaker 3

Right right, There were definitely three points when it is super aggressive and wanting to get outside and things like that. Absolutely, people who keep squirrels as pets generally don't keep them for very long because once they get to that point, they are just aggressive and bitey and one out.

Speaker 1

Well, you've been in academia a long time and you've been researching squirrels for a long time. And we have a ton of people who I will list in and aside, including Adrian who works on an elementary school campus and whose students have become a sessed with crime squirrel one who rifles through their backpacks and patron Alec Joseph whose friends have quote college squirrel trauma, and Mary con Cannon. Natalie Jones, Chelsea, Victoria Turner, Cassandra Grafts from Tara Tiger Studio.

R J Deutsche, Emily Stouffer, and Kyler Murphy want to know about college squirrels. They want to know why are they so big? One says, what's up with you of m squirrels? R J Deutsche says, I dare say you haven't seen Rutgers squirrels. Emily Stauffer, what is up with squirrels on college campuses? They seem to never have a fear of people. Natalie Jones says, I've seen a college campus squirrel drag a whole bagel away, stop, don't come back.

What is it about college campuses and squirrels, I mean their diurnal College students are mostly dire, and so you know, they just go kind of hand in hand.

Speaker 3

I think because they are so charismatic, people feed them all the time. I mean, I can tell you that the squirrels on my campus are twenty percent larger than if they were just out somewhere else. And people know that I study squirrels on campus. I'm well known, squirrel doc is well known. But people still will feed squirrels.

There is an Instagram account that is not run by me, just for our campus squirrels, and I sometimes get salty with them because I will submit good pictures and they are not chosen to be featured on the Instagram feed.

Speaker 1

How dare?

Speaker 3

How dare?

Speaker 1

Patricia Juese notes that they found a squirrel eating a hot dog bund in a tree a few weeks ago. I mean, just the idea of them eating whole hot dog bond. Chandler Weddington wants to know, how do they not get poisoned when they eat mushrooms? Do they ever get high? How do they know? I can't I can't forage for mushrooms, and I have a computer in my pocket.

Speaker 3

So they do eat mushrooms that would be poisonous to us. So they clearly have a different digestive system and processing system than we do. And they probably do have occasionally had psychedelic mushrooms. I have seen videos of squirrels drunk after they've eaten pumpkins or apples or things like that that have fermented and have alcohol in them, and really can't climb up a tree very well. They kind of keep falling off and falling over and lack of coordination.

Speaker 1

Do you think they're having fun or do you think they're like, what the fuck? Why is the tree moving?

Speaker 3

Like?

Speaker 1

Why's the tree spinning? Sometimes it's a fermented pumpkin, sometimes it's a fizzy crab apple, and sometimes it's standing under a keg like a rainforest shower. Reported by Buzz sixty.

Speaker 5

Operators at the Honeybourne Railway Club say when they opened up they found beer spilled all over the floor, glasses knocked off the shelves, and bottles scattered everywhere. Employees thought they'd been burgled, But then the culprit staggered into view, a slow moving squirrel, still apparently intoxicated from lapping up the fruits of his destructive rampage.

Speaker 1

So it happens, and this is why squirrels don't have driver's licenses. Sad Jess Donald wants to know how many nuts canna fit in their mouth? And also apologies if that sounds in appropriate, how big are their face versus when it comes to their ludicrously capacious face, how much can they fit in there? Or do chipmunks really have that down?

Speaker 3

Chipmunks really have that down. Squirrels still have pouches and they can pack some good food in there, but chipmunk are the ones really who kind of like right have that like big expanding piece. And like I do catch chipmunks in our traps, and my favorite thing is when you grab them, the first thing they do is just kind of regurgitate all of that that's in their mouth. It just kind of all just like just falls out, like I am so sorry. You can have this later.

I won't take it. You can come back for it. I'll leave it right here, or better yet or works yet. It depends on how you think about because I use peanut butter typically the trap they will have their cheek stuff with peanut butter. So then it's like the Plato back fro this peanut butter kind of being squished out, so they like just take.

Speaker 1

It, just take it.

Speaker 3

I don't want this.

Speaker 1

Nick Nikash wants to know, did squirrels invent maple syrup? Have you heard this?

Speaker 3

No?

Speaker 1

I don't know.

Speaker 3

I mean, certainly they will eat sap. Certainly they will pull the outer bark off and eat that inner camium and and things like that, particularly when there's not a lot of food to eat. And so maybe you could say that they, you know, have long time taken advantage of that.

Speaker 1

What It's true according to the Journal of Mammalogy paper Maple Sugaring by Red Squirrels, in which doctor Bernd Heinrich writes, red squirrels make a tap via a single pair of chisel like grooves from one bite into the sappy xylum layer of maple trees. But they're write quote, the dripping dilute sap was not harvested. Instead, the squirrels came back later and selectively visited the trees that had been punctured

after most of the water from the sap had evaporated. Yes, so they found this all over Vermont and Maine, and the Hoode Nashoni legend credits squirrels with teaching indigenous folks how to tap and evaporate maple sap. So waffles brought to you by squirrels Oh. Speaking of food water, patron Iris Hutchings had a question about what happens when squirrels get thirsty. Where are they drinking water from? Actually? Do they get it from the plants they eat?

Speaker 3

From everything that they eat? Yeah?

Speaker 1

Is it good to set up like a little water feature fountain?

Speaker 3

You can? They usually won't drink from it, though it's not something they won't so.

Speaker 1

Don't get your feelings certif they don't. No, And this one about squirrel memory was on the minds of Pupita, Diana Teeter, Alexandra cattool On, klaush, Loreene Evans, Taylor Faukner, Jeff Berg, and Alex Keeley. A ton of people want to know how do they remember where they hit their food? Do they have that kind of memory year after year?

Speaker 3

Probably not year after year because most of the resources are probably gone within a year. We do know that the size of their hippocampus, which we know is used in special memory, does increase in the fall when acorns are present. There's research that clearly shows that I was part of that as an undergrad as well. The size of the hippo campus in spring versus fall, it's much larger in fall. For them to try and remember that.

But that's a great question. It's one of the things that my lab has just started to try and take on. I have some hypotheses that say that some species of squirrels are probably I don't want to say that they are are at remembering, are probably better at relocating scatter hordes of acorns and things like that.

Speaker 1

Also, in case you think scatter hoarder is an unnecessary insult, it's not just a way to say that you're a mess squirrels. It's just a mammalogy scritiology term for hiding your shit in a few different places, which is a thing that you might do with lip bombs or money, except it's lunch and it's in the dirt. A few people, including Amanda and Chase panics want to know, by the way,

I just want to say never. In three hundred and fifty episodes of this podcast, have I gotten so many questions that start with a story, and that is the best. Amanda says, I have a squirrel that comes to my window and waits patiently until I give it nuts. It looks like she gets excited when she sees me and recognizes me. Can squirrels recognize individual humans like pros Can and Chase and others want to know like do they remember friendly faces or are you of any machine?

Speaker 3

I don't think so, but I'm willing to bet that her behavior is the same every time, and so she recognizes the same.

Speaker 1

Behavior Madison Hunter and some other people also Wild Pack of Dogs, Nicole d J, Dave Dbairmaker and first of question asker Julia Suamela wants to know if you've seen Mark Robers squirrel obstacle course videos.

Speaker 8

So the first challenge is the bridge of instability. Now this may look easy, but the trick is it attaches at a single point on each end, and from a physics standpoint, that makes it no different than trying to crawl across the tyrope.

Speaker 1

So these videos went up during the early pandemic and they feature a backyard squirrel, well several going through what is described as an American Ninja worrior course to reach a bird feeder. These videos have wracked up hundreds of millions of views. How do you feel about them?

Speaker 3

I mean it's awesome and I love that. I love it when people ask me about you know, they'll describe their entire setup of bird feeders and things like that. It's so great and it just shows really how smart they are and you know, spatially conscious. And then he has the whole piece about it, like when they get launched that they always do land correctly and you can really easily watch how they use that tail as a rudder and there and everything, and so it's just perfect.

It's great. But people do this all the time. They'll be like, I have the spring and then I used vastly and I a grease this and they this is far from here and they have to do this and they have to go here, and like, yep, it's amazing.

Speaker 1

Everyone, I guess with a backyard looking at you. Katie Courtwright and Ebbie Sage, Scarberry Grace Rubis show. Katie Armstrong wants to know how do we keep the bird feed safe? Jenny low Roads want to know why do they eat all the bird seed? With capital A and raining Emily asked this question. So my grandfather is constantly a war with squirrels because they eat his bird seed. And their question was is it bad for squirrels to eat bird seed or just some beef that my grandfather has with

the squirrels. And I was like, Emily, I hate to tell you that, I think your grandpa's just team bird here, But is there anything bad about bird seed or is it just that they're taking from birds?

Speaker 3

No, it's just a yeah, no, there's nothing bad about bird seed or things like that. And my answer, my best answer, so listen up, is hot pepper bird seed. Go someplace it sells specialty bird seed. Get the hot pepper bird seed. It'll stop the squirrels from eating it. They'll stop the deer from meeting it, they'll stop the

raccoons from eating it. And then once you've you know, dissuaded them that the bird feeder is not where they want to be, then you can kind of mix fifty to fifty hot pepper bird seed and regular bird seed and maybe even go back to this regular bird seed until they figure back out again, and then you have to go back to the hot pepper bird seed. But that is my that is my only it's my best advice, and that's nature.

Speaker 1

That's just birds can't taste it, so right. We did a Chickens episode recently about putting red pepper flakes in your chicken feed. Not only are the girls like hell no, but also you get really beautiful orange yolks. Yep, but it does bring you to a question a lot of people want to know, such as Cynthia Connor, Catherine Finny, Megan Guthrie, Maya, Cherry Webb, Pascal parent and Jackie Ross. How does one protect their gardens as much as they love them? Ls and p First time question asker, how

do I get supposed to stop stealing my sunflowers? Catherine? Apparently squirrels are digging up their vegetable garden. Other heater did call them furry terrorists Jackie Ross? Is there any real way to stop them from eating your plants?

Speaker 3

Nope? World domination for sure.

Speaker 1

What about a net? Get a net?

Speaker 3

I mean, sure you can, you can try a net and keep them and the birds out, but sometimes, I mean, they're pretty smart and they can kind of usually get between the fence and the net, and like the birds who just kind of go from the top, and so it's hard, especially if you live someplace that has ground squirrels or groundhogs or woodchucks, like you're in trouble.

Speaker 1

Well, they got some judgment from some people who wanted to know why they taunt us by not eating the whole thing. Camille Charlotte Blath rip to your half eaten tomatoes, and Nina Giocave says, why do they taunt me by leaving half eaten strawberries on the edge of my garden? Apparently? Marika says, why do you squirrels leave treats and leftovers on my window sills? Why do they not finish?

Speaker 3

I have complained about this too. They will eat one bite out of the tomato and then put it down and then reach to the next one eat the next bite of the tomato, and so it's not like they respect me either. I think it comes from that natural behavior to not eat the whole acorn, not eat the whole seed, right, So they'll eat the top half of the acorn because it has less tannins, so it means more protein for them, and then drop it and move on to the next one. And because it is so abundant.

You know, we could use our marginal value theorem and talk about optimal foraging that it's just better to take the best bite and move on.

Speaker 1

Take the best bite and move on, people. Horrible strategy for humans, works good for squirrels, who can be so frustrated with them. I mean, who doesn't, I guess want to just go to a Smorgasport child, little nibble everything else, both.

Speaker 3

Eat the best part of the strawberry and just yeah, the rest of it.

Speaker 1

Stephanie Coombs wants tips on keeping them out of my shed aside from rebuilding it. If they trap them, will they come back? And again a great story. But in terms of hiding mushrooms, apparently Stephanie's rubber boots were filled this year with mushroom, which is so cute. But if you wanted to keep them out of a structure such as attic squirrel having Hannah Nolan and James Nance and ness and Sydney I and Abbi Greeb who struggles with garage squirrels.

Speaker 3

You need to make sure that there's no way that you can get in. Usually we have to make sure you block up any holes or entrances or things like that, because if you don't take them very far away, they will most likely come back.

Speaker 1

Art by DJ has a weird one. They say a neighbor had a squirrel one by one steal all the bulbs off her string of deck lights, chewing them off at the cord and then just running away with them have you ever heard of this?

Speaker 3

Yes, and I don't know why. So their insizors continue to grow, so they have that need to continue to gnaw for their entire lives to keep their tooth wear down. And there definitely are some plastics that seem to be more favorite than others. And so I don't know what the component of the plastic is. I can tell you. On our campus, they bought some of the recycled plastic picnic tables that are supposedly made from corn cobs. Oh, apparently those are very tasty. Oh any like hole or

break or anything. Squirrels are just in there gnawing and chewing. And I don't know if it's because it's just ever such a slightly softer plastic, or if there is actually something tasty remain left over in that corn plastic.

Speaker 1

Well, I gotta say I had a preas corn stopped working. I don't know where. I took it up with my hoe. I said, let me know if you find a dead raccoons in there, lolol. They called me back. They're like, you got a nest in your car? They cracked over my hood, half an orange, a bunch of snail shells, and apparently the wire harness and Toyta Prias's is moved with soybean oil and it is scrumptious. You've heard I'm sure you've heard this a lot, right.

Speaker 3

Yep, that's soy plastic. So ugh.

Speaker 1

It was so cute, but there was also so much poo and I was like, guys, that almost sounds like rats, right yeah, Okay, squirrels throughout the hook. Another reason why I love Patreon questions is because this I did not know a lot of people. James Hales, Ama, Craig Sedoni, S and Irish Touchings. Words asked. Is it true that red squirrels will chew off the gonecks of gray squirrels to decimate the gray squirrel's population? Is that true that they cast rate each other with their mouths?

Speaker 3

Never?

Speaker 2

Never?

Speaker 3

No, Red squirrels are definitely far more aggressive, okay than gray squirrels are fox squirrels. I generally say my rule of thumb is the smaller the squirrel, the more aggressive, or the largest squirrel, the more dopey it is. But no, there's none of that happening. So if there are red squirls around, they will typically chase off the gray squirrels and fox squirrels, but there's no interaction like that.

Speaker 1

Oh slim flambusted.

Speaker 3

So I think sometimes people kind of misjudge that because when males are sexually active, you can clearly see their testies. They're rather large, you've got to set a ball. But when they're not sexually active, those testies regress back up into the body cavity, and so then you don't see them.

Speaker 1

Oh so they put them into retirement. Yep. Okay, well that's good because I was about to that blew my whole mind. But as long as you're busting flim flam, let's talk TikTok Amanda lask first, he question As and

a bunch of other people. Matthew Whitman, Lenny Olseth, Laurel, Jen Squirrel, Alvarez, Amy Ducree, Stephen Shelley, and Danielle Zonas all asked about TikTok user Andy Witch's February twenty twenty three video that apparently demonstrated some kind of squirrel mind control by undulating an outstretched arm toward a squirrel on this suburban street. Andy Witch, how literal is that last name? Because I love it? Also? What and why? How? What the hell is up with the wave hand motion thing

that's supposedly mind controlling squirrels. Do you know what I'm talking about?

Speaker 3

I know completely what you're talking about.

Speaker 6

In a cool life act of controlling squirrels, you could actually control squirrels by using your hand in a wave motion and you could see that the scroll comes towards me. I learned this from a friend who was in the squirrel club. So now the squirrel's super close to me. You could do this on all squirrels, be careful.

Speaker 3

I had to try it because I'm like, I've never seen this. I have no idea. I've had zero luck, so I don't know what this is. Nothing I can think of it said. It kind of mimics like the giving of food, and so maybe squirrels who are in urban parks who are used to being fed by humans recognize that kind of up and down motion, but I don't. I don't have another explanation.

Speaker 1

Well, as long as we're communicating with appendages. Chris Whitman, Yes, Jeanette mass mccurty, Megan Gothrie, they want to know, in Christ's words, what does the fast tail twitching mean? What are they communicating with their tails?

Speaker 3

Typically? When it's kind of flipping back and forth. That's kind of a predator alarm call. It's a visual predator alarm calls.

Speaker 1

Okay, if they're twitching and screaming at you, they're like, you're gonna kill me, Get out here. I hate you, stranger danger.

Speaker 3

I'm telling everybody around me and preator here.

Speaker 1

Wow, they're trying to cancel you because what they're doing because we could kill them, and I see you. Yeah, we are predator. There's squirrel hunters are out there. Have you ever eaten squirrel?

Speaker 3

Not knowingly? I feel like that's a line you can you can't cross, right, Like, I'm sure that somebody has sped it to me at some point, but not knowingly.

Speaker 1

Do you have any enemies? Do you think anyone's done it?

Speaker 3

Just just no, not that I know of, but I'm sure somebody, you know, I would think that that would be a welcoming kind of thing.

Speaker 1

And if your toes curled and your throat seized hearing that. I do have some historical news. So a lot of humans have been eating a lot of squirrel for a long time, and squirrels have been called the chicken of the trees and in some cultures, squirrels are considered kid's food, truly the chicken nuggets of the woods, and there are one point five million registered squirrel hunters in the US.

Many ecologists and chefs praise squirrel hunting as more humane and less ecologically devastating than factory farmed meat, and a potential control of invasive species of squirrel. It's also from a taste perspective, said to have a nutty, gamey quality that can be swapped out for rabbit in some recipes.

You know President James Garfield. He liked this protein source so much that the eighteen eighty seven White House Cookbook features a recipe for squirrel soup and that involves lima beans, potatoes, tomatoes, corn butter, celery, parsley, and the use of a coarse colander quote so as to get rid of the squirrel's troublesome little bones. Well. The recipe concludes with a self review very good.

Speaker 3

Squirrel hunting is a million dollars a year business in Mississippi. Like it is a hugely popular pastime, so it is a reason for management of score populations to keep numbers high so that people do have access to them. The squirrel that was introduced on Mount Graham was introduced purely for hunting purposes, so that people would have a squirrel to hunt.

Speaker 1

Oh wow, until we did a Mountain Goat episode, I didn't realize exactly how much. Obviously, conservation effort is also like we got to crunch the numbers so we can figure how many it's cool to kill, which is better than not crunching the numbers. But you know, historically a lot of conservation is also paid for by hunting licenses too, So back back and forth, I think that there maybe might be a notion that like, if you hunt this animal, you don't care about their well being. But it's way

more complicated. We covered this in the deer episode too, But I feel like there's a very urban and world divide where it's like, if you go out and hunt any animal, you are a sociopath. But it's absolutely fine to have bacon at a diner in the city, you.

Speaker 3

Know, right right. I get asked questions all the time by squirrel hunters. They want to know you better ways to find squirrels, catch scrolls, things like that. I also get asked by fishermen about squirrels because scroll fur is used in a lot of fishing lures, so fly fishing lores and so.

Speaker 1

What about jack Olne Wheelan and Kate Armstrong and the diitary quality want to know in Katie verts, is it true those squirrel has a range of about ten miles and it can find its way home if you drive it ten miles away and drop it off.

Speaker 3

Probably ten miles is a little far, but not crazy far. Yeah. Really, I'm definitely thinking the squirrels five miles and had them reliably come back, so, particularly during mating season and things like that, they males will go pretty far. How are they doing that world domination? No? I mean they specially have a good recognition. Clearly they have some kind of I don't want to say homing, but they clearly have some kind of spatial recognition where they can come back.

Speaker 1

That's amazing. I wonder if you'll ever find out they have like pigeon magnets in their head.

Speaker 3

Yeah, some kind of compass, you know.

Speaker 1

Yeah, And that compass might be the himpocampus, which not only helps squirrels with their spatial memory to recall all that scatter hoarding, it could be at play when it comes to squirrels making their way back home, which can definitely happen when people trap like an attic squirrel and then drive five or ten miles away and release it in a new part of town, and they're like, who

glad that's over. And then a few days later it's like back at your window being like wow, ghosted, brutal, and then you have to atone to their furry little faces which you maybe never wanted to see again. I don't know, blame their brains. World domination. Megan Lynch who was a caribologist who studies carab trees, and Davis left a question about an introduced species learning to break into

these tough raw pods of another introduced tree. Does one pioneer squirrel learn something and do they teach each other? Like how much of that kind of communal living and squirrel dres is teaching each other things?

Speaker 3

So, I mean, we don't really know about social learning in terms of like feeding an acorn or things like that, but a lot of their food has kind of that harder outer shell, So acorns, buck eyes, while nuts like all those kinds of things have that really hard care pace that they have to get through and kind of d shell, and so a care pod to me, probably isn't all that much different than a fuck eye or something like that, where they really kind of have to

break off that outer husk to get to the inside piece, and those teeth are sharp and they have a lot of pressure. They can crush a lot of things.

Speaker 1

For more on carib than not chocolate tree with a bonker's history that might be grown on a street. We'll link that episode in the show notes. And last listener question, I could literally talk to you for like ten hours. You are so lucky that you did not get seated next to me on a flight to New Zealand because I would be You're like, I need to sleep. A good question that I didn't even think of. So many people Britney Kaufman m N nine and of course Camille

Inil Charlie Banes words, what's up with squirrelproop? I have never seen. It doesn't exist. Where is it in the grass?

Speaker 3

It's in the ground. I mean it's kind of like tic TACs, like tilly beans, Like do.

Speaker 1

They poo in their nest or does that? Unknown?

Speaker 3

Yeah, typically there is kind of an area well it'll collect and things like that, but you know, if possible, they'll go outside other.

Speaker 1

Than podcast hosts. What's the worst thing about your job other than me asking you questions forever because you're the best.

Speaker 3

But that's I said there, that's not a bad part of my job, right, Like when I realized I could kind of mix the genetics and wildlife piece to be helpful, you could think about charismatic megafauna and how cool it would be to work on, you know, mountain lions and things like that. And then it was like, no, I could have this charismatic minor fauna. I don't want to say micro because they're definitely not that small, and they're not really mezzo because they're not kind of medium like

skunks and raccoons. But you know, everybody knows them, and pretty much everybody has the story has a love hate

relationship with them. Those are the things that make the best stories and really allow you to kind of connect with somebody and have them learn a bit about ecology and the world and talk about things like climate change and forests and hook somebody and make them passionate and make just a genuine human connection and really see each other and past all the other stuff, and so it's kind of nice, and so there really isn't a bad part.

Speaker 1

But what does suck about it? Though? Get real with us.

Speaker 3

When I was in Arizona and trapping at one hundred and ten degrees or on top of Mount Graham and you know, in ten feet of snow and snowshoes, trying to find the one squirrel mess and determine if there is a squirrel. It's not always the most fun. So it was the most comfortable.

Speaker 1

What about Have you ever had a favorite moment on the job?

Speaker 3

I do. So when I started here at Balden Wallace, they were very concerned that people would be worried that I was harming squirrels and that Peter would be protesting and things like that. And I was like, I invite anybody who has any questions to come with me, you know, come trap with me. Watch the squirrels, watch what I do.

You will see that I am not inflicting pain, that they are happy to be there, They're happy to have their peanut butter treat, and you know, we try to minimize any kind of discomfort and the time that they're with us and things like that. And so I have

a film crew from a news station with me. I have university relations with me and I have two students and we're catching squirrels and going through and at some point a summer camp realizes that there's a kind of a something going on over here, and we kind of

want to see what's going on. And so at some point I kind of look up from measuring shin bone lengths and things like that, and I am surrounded by probably thirty thirty kids, you know, every color, size, shape, every kind of background, and they're all just watching me, just completely fascinated. And they don't know what's in the giant pastry bag, you know, and they're trying to figure that out, and they're asking me questions, and my students are,

you know, trying to be calm and answer questions. And the news is fascinated, you know. So they're showing the kids and showing me and showing the kids, and it just was at the moment that you realize, like this is what you want as a scientist, Like this is what you want. You want to ask questions, get answers, and then have that information put out into the world.

And so there's a picture of me, and it's me and I have a squirrel kind of sitting on my leg, and there's a squirrel on the ground and my two students are doing things and you can just see these legs, these legs of the students in the back of the picture, and that's probably one of my favorite favorite moments.

Speaker 1

This has been just such a joy. I cannot tell you the emotions I had when I clicked on your Instagram and saw like the follow back. I was like, Karen minrons.

Speaker 3

See and I had just the opposite. I had the complete imposter like like, why does she want to talk to me?

Speaker 6

No?

Speaker 1

Trust I looked at your research, It's like this is the squirrel expert for me. I would accept no others. So don't be scared to ask smart people scorely questions and then just scatter hooard that information for your next dinner party. Now you can follow doctor Karen Monroe at squirrel Doc, which is linked in the show notes. We also linked to the two causes we donated to in her name. We're at Ologies on Twitter and Instagram. In

case you're still on those, I am. I'm also at Ali Ward with one L on both and on TikTok at Ali Underscore Ologies Smologies our kid friendly shorter episodes and those are linked in the show notes. Thank you to Zeke Rodriguez, Thomas and Mercedes Maitland for working on those.

Susan Hale as our managing director, she keeps the ship's sailing, including dealing with merch at ologiesmirch dot com, where we sell shirts and bags and stickers, bathing suits and hats and you can find other Ologites in the wild that way. Noel Dilworth schedules the interviews. Aaron Talbert admins the Ologies podcast Facebook group with assists from birth Lady Bonnie Dutch

and her sister Shannon Feltis. Emily White of the worderre makes our professional transcripts, which are linked for free in the show notes. Kelly ar Dwyer tweaks our website and can build yours. Mark David Christensen and Jared Sleeper of mind gam Media Assistant edited this and lead editing was performed by Mercedes Maitland of Maitland Audio, who also produced this episode alongside us. She does so much for the show.

I cannot think her enough, and she does it all the way up in her cozy Canadian dre Nick Thorburn wrote theme music and if you stick around to the end of the episode, I tell you a secret, and this week it's that I am still sick with pneumonia. I'm recording this in bed, where I've been for the last twelve days, and I keep getting a lot of messages being like, don't work, don't work, don't work, and I'm like, how do I not? But also, I love this job, and let's be honest, I'd probably be researching

squirrel brains anyway. But I'm on the mend and that's good. And another thing I've been doing in bed is I have this workbook that my therapist gave me. It's on self compact. It was written by Kristin Neff, I think, and I'm making notes in the margins and doing the exercises and having compassion for yourself if you're not used to. It is hard at first, but I'm learning. I'm learning every day. So if self compassion is something that you struggle with, might I suggest a work book on it?

Because hey, our little squirrel brains, we love to learn things. Every day can be a little bit better than the last. All right, Okay, bye bye, pacidermatology, bombiology, rypto zoology, lithology, zeronology, meteorology, pology, nathology, seriology, silology. Wow, she had actual squirrels in her pants. Get value.

Speaker 2

You can't argue with Auntesco with their amazing club card prices. Have the perfect night in with our finest frozen pizza meal deal. Get the finest frozen pizza, chips and ice cream all for six euro. Like our delicious spicy Salami, hot honey, and do you or Margarito wood fired pizzas served up with their crispy chunkie chips and ice cream like Sea salta caramel or Pistasio for dessert. Can't argue with that shop in store or online.

Speaker 1

Tesco.

Speaker 2

Every little helps available in most stories. Prices varying express.

Speaker 4

Do you know what real power is? It's knowing you're on the same rate for energy all day, every day with a smart all day plan from board Gosh Energy, save up to eight hundred and eighty euro on dual fuel plus get a two hundred and thirty five euro welcome bonus switch today at Boardgosh Energy, dot I e Board Gosh Energy. Know your Power.

Speaker 2

Estimation Annuel bill of twenty six hundred and twenty nine your own new customers only thirs percentis kent off smart all day electricity unit rates in twenty nine percent of GASSA unitrates.

Speaker 1

Seaportcash Energy dot E for full teesncs

Transcript source: Provided by creator in RSS feed: download file
For the best experience, listen in Metacast app for iOS or Android