Our prehistoric human ancestors relied on deliberately modified and sharpened stone tools as early as 3.3 million years ago.

In the technical description, the authors emphasize that the skeleton includes clavicle and shoulder-blade fragments, both upper arms, both forearms, plus part of the sacrum and hip bones - rare ...

The Nyayanga excavation site in Kenya, in July 2025. Fossils and Oldowan tools have been excavated from the tan and reddish-brown sediments, which date to more than 2.6 million years old. T. W.

Ancient human relatives moved diverse stones over substantial distances, researchers report, revealing a surprisingly high degree of forward planning 600,000 years earlier than experts previously ...

Scientists examining traces left behind by early humans continue to find evidence that refuses to stay neatly in place. New ...

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 these early people ...