A big difference between humans and other apes is the ability to stride easily on two feet. A new analysis of fossil bones shows that adaptations for bipedal walking go back 7 million years.

Over the last year or so, Silicon Valley made an all-out push for employees to return to the office. Now that the industry ...

A long-running and bitterly fought dispute over whether the earliest known hominin had a knuckle-walking gait, like ...