New research finds early human ancestors during the Stone Age were more picky about the rocks they used for making tools than previously thought.

A new study shows two species of early human ancestors used their hands for both climbing and tool-making.

Researchers say a fossil jawbone discovered in Taiwan belonged to an enigmatic group of early human ancestors.

Scientists report that a fossil of a partial face from a early human ancestor in Spain is between 1.1 and 1.4 million years old.

A new study says Neanderthals and humans likely mixed and mingled during a narrow time frame 45,000 years ago.

Ancient stone tools found in western Ukraine may be the oldest known evidence of early human presence in Europe.

Scientists have identified a gene mutation that may explain why we don't have tails.

A site in Kenya has yielded some of the oldest stone tools ever found — and fueled a mystery of who used them.