A new study of wrist bones suggests human ancestors may have shared a knuckle-walking past with chimpanzees and gorillas.

Leaf through a textbook, watch a wellness influencer or listen in at the gym, and it can feel as though the human body has already been mapped to exhaustion. Every muscle named, every nerve traced.

A typical day in the field in the dry savanna of East Africa ended up changing what scientists knew about early human evolution. As part of their research to understand and map fossils across an arid ...