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

(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 ...

A palm-sized fragment of elephant bone, shaped and used as a precision tool almost half a million years ago, has been identified as the oldest known elephant-bone implement in Europe. Although the ...

When Japanese scientists wanted to learn more about how ground stone tools dating back to the Early Upper Paleolithic might have been used, they decided to build their own replicas of adzes, axes, and ...

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 ...

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 ...