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The first stone tools that ancient humans made were deceptively simple. At least 2.6 million years ago, our ancestors learned to strike stones and break off sharp flakes that could function as knives.

Evidence suggests the tools were used by the human relative Paranthropus, which scientists previously believed relied only on its teeth and jaws to eat. Scientists have unearthed more than 300 stone ...

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 ...

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 ...

A team of archaeologists recently applied high-tech engineering tests to stone tools, and the results suggest that even very early members of our genus, like Homo habilis, knew how to select rocks ...