This has been quite the wild year in human evolution stories. Our relatives, living and extinct, got a lot of attention—from new developments in ape cognition to an expanded perspective of a ...

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 ...

As early humans spread from lush African forests into grasslands, their need for ready sources of energy led them to develop a taste for grassy plants, especially grains and the starchy plant tissue ...

On a bright, late-summer day in north-central Europe around 300,000 years ago, a team of perhaps a couple dozen hunters got into their assigned positions for a big kill. Little did they know that ...

A new study posits that same-sex sexual behavior developed to help primates in complex social groups ease tension, reduce ...