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 ...

In a series of recent archaeological expeditions, tools dating back millions of years have been unearthed, offering a new perspective on human evolution. These discoveries not only shed light on the ...

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, ...

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 ...