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 ...

Oldowan stone tools made from a variety of raw materials sourced more than six miles away from where they were found in southwestern Kenya. In southwestern Kenya more than 2.6 million years ago, ...

Learn about the archaeological site of 'Ubeidiya, now confirmed as one of the oldest areas that humans occupied outside of ...

In a world of shifting rivers, spreading fires, and deepening droughts, early humans held fast to one simple idea - the sharp edge of a stone. At a site in northern Kenya, researchers have uncovered ...

This research provides a clearer timeline for the onset of stone tool technology and helps attribute early technology to climate pressures. The research also provides empirical evidence that ...

Archaeologists working in Alaska’s middle Tanana Valley have recovered stone and ivory tools from a sealed stratigraphic layer dating to roughly 14,000 years ago, making them among the oldest worked ...

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 ...