Fossilized teeth show that two different kinds of ancient human ancestors coexisted more than 2 million years ago. One of ...

Researchers say recently discovered teeth come from a previously undiscovered species of Australopithecus, adding to our understanding of human evolution. Maybe you've seen the T-shirts or the mugs, ...

A handful of teeth unearthed in Ethiopia has led to the discovery of a new species of human ancestor.The finding, announced ...

A timeless question has always fascinated scientists who study the past. Which comes first, the new behavior or the physical tool that perfects it? Do you change how you live and then evolve the body ...