Implanting Memories in Birds Reveals How Learning Happens
Researchers activated specific brain cells in zebra finches to teach them songs they’d ordinarily have to hear to learn. Learn more about your ad choices. Visit megaphone.fm/adchoices

Researchers activated specific brain cells in zebra finches to teach them songs they’d ordinarily have to hear to learn. Learn more about your ad choices. Visit megaphone.fm/adchoices
Pet dogs appeared more interested in videos of a bouncing ball when the motion of the ball matched a rising and falling tone. Christopher Intagliata reports. Learn more about your ad choices. Visit megaphone.fm/adchoices
Archaeologists working in the ancient city of Hierakonpolis discovered five ceramic vats containing residues consistent with brewing beer. Learn more about your ad choices. Visit megaphone.fm/adchoices
Cats are clingier to their human owners than their reputation would suggest. Karen Hopkin reports. Learn more about your ad choices. Visit megaphone.fm/adchoices
Study subjects with a gene variant that heightened their sensitivity to bitterness tended to eat fewer vegetables than people who didn’t mind bitter flavors. Christopher Intagliata reports. Learn more about your ad choices. Visit megaphone.fm/adchoices
A measleslike virus is ricocheting through marine mammal populations in the Arctic—and melting sea ice might be to blame. Christopher Intagliata reports. Learn more about your ad choices. Visit megaphone.fm/adchoices
Researchers tracked thousands of individual ants to determine how they move in vast numbers without stumbling into gridlock. Learn more about your ad choices. Visit megaphone.fm/adchoices
In an analysis of chess and tennis matches, players rising in the rankings did better than expected against higher-ranked opponents and better than similarly ranked players who were not rising. Learn more about your ad choices. Visit megaphone.fm/adchoices
Within just a third of a second of hearing a snippet of a familiar refrain, our pupils dilate, and the brain shows signs of recognition. Christopher Intagliata reports. Learn more about your ad choices. Visit megaphone.fm/adchoices
A few brief reports about international science and technology from Brazil to Hong Kong, including one about male elephants in India exhibiting unusual social behaviors. Learn more about your ad choices. Visit megaphone.fm/adchoices
The pumpkin’s ancestor was an incredibly bitter, tennis-ball-sized squash—but it was apparently a common snack for mastodons. Christopher Intagliata reports. Learn more about your ad choices. Visit megaphone.fm/adchoices
In cold, northern climates, eggs tend to be darker and browner—heat-trapping colors that allow parents to spend a bit more time away from the nest. Christopher Intagliata reports. Learn more about your ad choices. Visit megaphone.fm/adchoices
Green crabs learned to navigate a maze without making a single wrong turn—and remembered the skill weeks later. Christopher Intagliata reports. Learn more about your ad choices. Visit megaphone.fm/adchoices
The phainopepla migrates from southern California to the desert Southwest to breed in the spring before flying to California coastal woodlands to do so again in summer. Learn more about your ad choices. Visit megaphone.fm/adchoices
A gigantic fish from the Amazon has incredibly tough scales—and materials scientists are looking to them for bulletproof inspiration. Christopher Intagliata reports. Learn more about your ad choices. Visit megaphone.fm/adchoices
The Saharan silver ant feeds on other insects that have died on the hot sands, which it traverses at breakneck (for an ant) speeds. Learn more about your ad choices. Visit megaphone.fm/adchoices
Synthetic repellents such as DEET seem to mask the scent of our “human perfume”—making us less obvious targets for mosquitoes. Christopher Intagliata reports. Learn more about your ad choices. Visit megaphone.fm/adchoices
The resonant properties of your skull can amplify some frequencies and dampen others—and, in some cases, affect your hearing. Christopher Intagliata reports. Learn more about your ad choices. Visit megaphone.fm/adchoices
The Dsup protein protects DNA under conditions that create caustic free radical chemicals. Learn more about your ad choices. Visit megaphone.fm/adchoices
Rumblings on the Red Planet act like x-rays, allowing scientists to probe the hidden interior of Mars. Christopher Intagliata reports. Learn more about your ad choices. Visit megaphone.fm/adchoices
Algorithms are already used to remove online hate speech. Now scientists have taught an AI to respond—which they hope might spark more discourse. Christopher Intagliata reports. Learn more about your ad choices. Visit megaphone.fm/adchoices
The 2019 Nobel Prize in Chemistry goes to John Goodenough, M. Stanley Whittingham and Akira Yoshino “for the development of lithium-ion batteries.” Learn more about your ad choices. Visit megaphone.fm/adchoices
The 2019 Nobel Prize in Physics goes to James Peebles “for theoretical discoveries in physical cosmology” and to Michel Mayor and Didier Queloz “for the discovery of an exoplanet orbiting a solar-type star.” Learn more about your ad choices. Visit megaphone.fm/adchoices
The 2019 Nobel Prize in Physiology or Medicine goes to William G. Kaelin, Jr., Peter J. Ratcliffe and Gregg L. Semenza “for their discoveries of how cells sense and adapt to oxygen availability.” They identified molecular machinery that regulates gene activity in response to changing levels of oxygen. Learn more about your ad choices. Visit megaphone.fm/adchoices
DNA from the teeth of medieval plague victims indicates the pathogen likely first arrived in eastern Europe before spreading across the continent. Learn more about your ad choices. Visit megaphone.fm/adchoices
Scientists found eight species of nematodes living in California’s harsh Mono Lake—quintupling the number of animals known to live there. Christopher Intagliata reports. Learn more about your ad choices. Visit megaphone.fm/adchoices
Tiny insects called treehoppers produce very different mating songs at higher versus lower temperatures, but the intended recipient still finds the changed songs attractive. Learn more about your ad choices. Visit megaphone.fm/adchoices
Adult corals can reshuffle their symbiotic algae species to adapt to warming waters—and, it appears they can pass those adaptations on. Christopher Intagliata reports. Learn more about your ad choices. Visit megaphone.fm/adchoices
The brains of those who are blind repurpose the vision regions for adaptive hearing, and they appear to do so in a consistent way. Learn more about your ad choices. Visit megaphone.fm/adchoices
A few brief reports about international science and technology from Hungary to Japan, including one about a wine grape in France that DNA testing shows has been cultivated for almost a millennium. Learn more about your ad choices. Visit megaphone.fm/adchoices