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

Add Yahoo as a preferred source to see more of our stories on Google. Stone tools are deliberately made by the hands of hominins, like these worked on by the author. John K. Murray Have you ever found ...

Old beliefs about early human behavior in East Asia are being challenged by the discovery of a richly-layered archaeological ...

Learn how archaeologists dated stone tools from central China and what they reveal about when early humans in Asia began ...

Monkeys in southern Thailand use rocks to pound open oil palm nuts, inadvertently shattering stone pieces off their makeshift nutcrackers. These flakes resemble some sharp-edged stone tools presumed ...

Archaeologists with the Colorado State University (CSU) Center for Environmental Management of Military Lands (CEMML) were investigating an archaeological site near the North Flowage when they ...

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 ...

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 ...

(The Conversation is an independent and nonprofit source of news, analysis and commentary from academic experts.) John K. Murray, Arizona State University (THE CONVERSATION) Have you ever found ...

(The Conversation is an independent and nonprofit source of news, analysis and commentary from academic experts.) At first glance, it might seem impossible to decipher. But as an experimental ...