Evolution Diary

New species are evading detection using a foolproof disguise – their own unchanged appearance. (…)

July 17, 2007—It may look enticing, but this “female wasp” (left) is all stalk. (…)

While no one has an authoritative answer, anthropologists have long theorized that early humans began walking on two legs as a way to reduce locomotor energy costs. (…)

Jawbones from an early human ancestor, found recently in northeast Ethiopia, could shine light on a murky period of human evolution, paleontologists say. (…)

The continuing battle between a butterfly and the bacteria that nearly wiped out all the insect species’ males has taken a sudden and unexpected turn. (…)