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

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

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

Nyayanga site being excavated in July 2016. Credit: J.S. Oliver, Homa Peninsula Paleoanthropology Project “The assumption among researchers has long been that only the genus Homo, to which humans ...

In 2008, Wiliam Nelson found an ancient American Indian stone tool at the base of a tree near Mount Vernon in Knox County. People have lived in Ohio for more than 13,000 years, making and using stone ...

Man's ancestors transported stones over long distances to craft tools 2.6 million years ago - 600,000 years earlier than previously thought. Stone tools unearthed in Kenya reveal that hominins ...

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 ...

Some stone tools found near a river on the Indonesian island of Sulawesi suggest that the first hominins had reached the islands by at least 1.04 million years ago. That’s around the same time that ...

A new archaeological site discovered by an international and local team of scientists working in Ethiopia shows that the origins of stone tool production are older than 2.58 million years ago.

Along the shores of Africa's Lake Victoria in Kenya roughly 2.9 million years ago, early human ancestors used some of the oldest stone tools ever found to butcher hippos and pound plant material, ...