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 ...

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 ...

More than a decade after the first Neanderthal genome was sequenced, scientists are still working to understand how human-specific DNA changes shaped human evolution. It's just over a decade since ...

Introduction : Why teeth? -- I. Development. Microscopes, cells, and biological rhythms -- The big picture : birth, death, and everything in between -- Things that can go wrong : stress, pathology, ...

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 ...