Illness & Sleepiness
A primitive neural switch may explain why illness makes us sleepy.
Goal-directed Brain Cells
Bats have specialized neurons that help them navigate towards a target.
Monkey Metamemory
Neuroscientists investigate how humans ponder what we’ve learned by studying the brains of monkeys.
Killer Mice
Scientists discover a vertebrate brain circuit that triggers hunting, pouncing and biting.
Insects in Winter
A listener asks: Where do all the insects go in winter?
Arctic Camels
Camels seem perfectly suited to life in the desert, but they may have evolved those traits in the high Arctic.
Sizing Up Dogs II
A listener asks whether it's true that large dogs don't live as long as small dogs.
Sizing Up Dogs I
A listener asks whether large dogs are more intelligent than small dogs.
Sled Dog Endurance
Champions of endurance, sled dogs can run for over a thousand miles without fatigue.
Plant Drug Factories
Stressing out plant cells can coax them into revealing medically-useful chemistry.
Trillions of Insects
No other creatures match insects when it comes to sheer numbers of migrating animals.
Reindeer Clocks
Most mammals have internal clocks that regulate their daily cycles, but not reindeer.
Reindeer Vision
Reindeer can detect ultraviolet light, which may help them survive dark Arctic winters.
Coconut Rhinoceros Beetles
In a race against time, scientists attempt to stop an insect invader by using its own sounds.
Pollution-Tolerant Fish
The Atlantic killifish has evolved the ability to survive in toxic waters.
Binge Drinking Teens
Could teenage binge drinking have effects on the next generation, even if they’re never exposed to alcohol?
Sickle Cell Gene Editing
Scientists use a powerful new gene editing tool to treat sickle cell disease.
Feather Mystery Solved
The berries of invasive honeysuckle plants are causing birds in eastern North America to change color.
Seafloor Biodiversity
Unexpected biodiversity on the seafloor may play a big role in marine food webs.
Bowhead Whale Songs
Bowhead whales in the Arctic Ocean sing a large variety songs to communicate with other whales.
Black Pig Preferences
Across the globe, humans have selected pigs with genetic mutations for black coats.