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

Ben Marwick does not work for, consult, own shares in or receive funding from any company or organization that would benefit from this article, and has disclosed no relevant affiliations beyond their ...

At a site in Kenya, archaeologists recently unearthed layer upon layer of stone stools from deposits that span 300,000 years, and include a period of intense environmental upheaval. The oldest tools ...

(CNN) — Stone tools unearthed in southwest China helped a mysterious group eke out a living in a cold and harsh environment 60,000 to 50,000 years ago. But whose hands shaped them? The answer could ...

(CNN) — Stone tools unearthed in southwest China helped a mysterious group eke out a living in a cold and harsh environment 60,000 to 50,000 years ago. But whose hands shaped them? The answer could ...

(CNN) — Archaeologists have uncovered primitive sharp-edged stone tools on the Indonesian island of Sulawesi, adding another piece to an evolutionary puzzle involving mysterious ancient humans who ...

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The research is evidence that long-term stability in a technology does not necessarily indicate stagnation. In fact, it may reveal a powerful fit between a working tool and the challenges of daily ...

Add Yahoo as a preferred source to see more of our stories on Google. The discovery of stone tools at the Longtan site in China's Yunnan province suggests the region may once have been home to ...