Flying south for the winter?

Flying south for the winter?
A look at long-distance migration reveals surprising pattern. Migration did not originate in the tropics, home of bird diversity. More »

Problems of the apes

Problems of the apes

Bad feet? Aching back? Impacted wisdom teeth? Blame balky designs inherited from your relatives. How has evolution equipped — or More »

Moles smell in stereo!

Moles smell in stereo!

A common mole never sees the light of day, but it can pinpoint the source of food in just a few seconds — thanks to its newfound 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 »

Counting bugs in Panama

Counting bugs in Panama

Life is biology is species: But how many species live on Earth? About six million arthropods (insects, spiders and crustaceans), says a More »