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 …
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.