Our prehistoric human ancestors relied on deliberately modified and sharpened stone tools as early as 3.3 million years ago. The selection of rock type depended on how easily the material could be ...

A statistical analysis of a series of signs carved into artifacts from around 40,000 years ago suggests humans developed ...

Early humans who made some of the oldest known stone tools might have traveled miles to secure the best materials for their construction, new research suggests. Archaeologists traced the origins of ...

Earlier migrations relied on “green corridors”—temporary windows of perfect weather that allowed people to move through ...

WASHINGTON (AP) — Early human ancestors during the Old Stone Age were more picky about the rocks they used for making tools than previously known, according to research published Friday. Not only did ...

Stone tools found in Israel are at least 1.9 million years old, showing humans left Africa earlier than scientists once believed.