She’s the ultimate evolutionary party crasher. Dubbed Ardi, her partial skeleton was unearthed in Ethiopia near the scattered remains of at least 36 of her comrades. Physical anthropologists had known ...

In this 4.4-million-year-old skeleton, scientists may have found the missing step between climbing and walking.

The oldest distinguishing feature between humans and our ape cousins is our ability to walk on two legs—a trait known as bipedalism. Among mammals, only humans and our ancestors perform this atypical ...

Sileshi Semaw from the Centro Nacional de Investigación sobre la Evolución Humana (CENIEH), is coauthor of a paper published in the Journal of Human Evolution about a large series of fossil ...

A study examines the walking and climbing capabilities of human ancestors. Humans' straight-legged walking gait provides substantially improved walking economy, or distance traveled per unit energy ...