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

Imagine a tool from the Stone Age. You're probably thinking of something in the shape of a leaf, with at least one of its sides fashioned into a point. But whether that point is sharp or blunt, smooth ...

This photo provided by the Homa Peninsula Paleoanthropology Project in August 2025, shows Oldowan stone tools made from a variety of raw materials sourced more than 6 miles away from where they were ...

Breakthroughs, discoveries, and DIY tips sent six days a week. Terms of Service and Privacy Policy. It may not seem like it at first, but there’s a big difference ...

Have you ever found yourself in a museum’s gallery of human origins, staring at a glass case full of rocks labeled “stone tools,” muttering under your breath, “How do they know it’s not just any old ...

Breakthroughs, discoveries, and DIY tips sent every weekday. Terms of Service and Privacy Policy. Some 6,000 years ago in the northern reaches of modern Latvia, a ...

Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. Stone tools ...

Sara Watson works for the FIeld Museum of Natural History and Indiana State University The Earth of the last Ice Age (about 26,000 to 19,000 years ago) was very different from today’s world. In the ...

WASHINGTON — 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 ...