Cocaine-resistant Mice
Mice lacking a single receptor in the brain don't become dependent on cocaine.
Learning from Mistakes
A genetic variation may impair one's ability to avoid dangerous choices.
Podcast
Evolution Special: The history of dogs, butterflies vs. cabbages and the world's largest scorpion. Plus: Could there be life two miles beneath Antarctica?
Butterfly Co-Evolution
Plants of the cabbage family evolved a toxic herbicide to ward off pests. But some insects evolved a way around it.
Giant Scorpion
Paleontologists have found the largest single arthropod known to science.
Vostok Ice
Million-year-old ice samples from Antarctica contain genetically fascinating microorganisms.
Staphylococcus Vaccine
A new vaccine for staph infections could reduce the problem of antibiotic resistance.
DNA Music Roundup
DNA is more than just an instruction manual for life. In fact, genes may actually function more like a well-orchested symphony.
Podcast
Mysteries of nature: Why do some leaves turn red in the fall? Global warming and the future of rivers. And the music of DNA.
Autumn Color
Fall colors come in several shades. But why the different colors?
Podcast
A snail hides in plain sight. A high-speed continental collision. And what fossils tell us about future extinctions.
Snail Camouflage
A sneaky snail evades predators by creating a unique form of organic camouflage.
Animal Behavior Roundup
Fish suffer from sleep deprivation just like humans.
Podcast
When plants heat things up. How dolphins sleep. "Healthy" restaurants that aren't. Army ant groupies. And more.
Sleeping Dolphins
A listener asks: Why don't dolphins drown while they sleep?
Fear and Bonding Roundup
The hormone oxytocin helps mothers bond with their babies.
Bug Behavior Roundup
Two tiny organisms team up to brew a deadly toxin.
Podcast
Chewing gum that's not sticky. Worms and bacteria team up. Some very hairy genetics. And more.
Woolly DNA
Woolly mammoths went extinct thousands of years ago. But now their genetic past is being resurrected through new DNA techniques.
Animal Attention
Humans may be hard-wired to pay attention to animals, according to a new study.
Life Origins Roundup
A new study suggests that scientists looking for extraterrestrial life should look in interstellar space clouds, made of hydrogen cyanide gas.