Moth Survival Strategies And A Rodent Thumbnail Mystery
Summary
This episode explores fascinating evolutionary adaptations. First, researchers discuss a global experiment using 15,000 origami moths to understand how camouflage and warning coloration strategies are influenced by environmental context and predator behavior. Later, a deep dive into the unexpected evolutionary success of rodent thumbnails reveals their crucial role in dexterity and accessing vital food resources like seeds and nuts, highlighting an often-overlooked appendage.Episode description
If you’re a moth trying to stay uneaten, there are competing strategies. Some moths rely on camouflage, trying to blend in. Other moths take the opposite approach: They’re bold and bright, with colors that say “don’t eat me, I’m poison.” Biologist Iliana Medina joins Host Flora Lichtman to describe a study that placed some 15,000 origami moths in forests around the world to investigate which strategy might work best.
Then, mammologist Anderson Feijó and evolutionary biologist Rafaela Missagia join Flora to dive into another evolutionary conundrum: why so many rodents have thumbnails.
Guests: Dr. Iliana Medina Guzman is a Senior Lecturer in the School of BioSciences at the University of Melbourne in Australia.
Dr. Anderson Feijó is a mammal curator at the Field Museum in Chicago.
Dr. Rafaela Missagia is an assistant professor at the University of São Paulo in Brazil.
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