Birds cross Himalayas

Birds cross Himalayas
Bar-headed geese hug the terrain as they cross the tallest mountains. Why does that take less energy than flying the shortest route? More »

Secrets of the sidewinder

Secrets of the sidewinder
The sidewinder rattlesnake winds sideways up hills that would defeat footed animals. A robot snake climbs a hill — returns some More »

Meet the mosquito: Annoying, deadly

Meet the mosquito: Annoying, deadly

Malaria is declining slowly, but skeeters carry other diseases, including dengue and West Nile. How do mosquitoes reproduce? What are More »

Bats on the wing

Bats on the wing
Bat wings are built like a mammal’s arm—and so their flight is fiendishly complex. More »

Come hither, says plant

Come hither, says plant

Study finds that bees “read” the electric field of a flower. First-ever detection of electric-field detection by animal not in water More »

Mapping evolution

Mapping evolution

Research in salty ponds shows how one species of pupfish becomes three — in a few cases. More important, it shows why this did not More »

Odder than odd!

Odder than odd!

Dig the dung beetle. Sample the belly button. Tilt your brain — and see what happens. Watch bees cook their enemies. Drive through the More »