Obsidian was one of the favorite stone materials for Native American tool makers (chert and other volcanic rocks were also ...

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 ...

A new study takes another look at some of the oldest known stone tools and suggests their makers transported materials for up ...

Hundreds of stone tools discovered in Kenya have revealed that human relatives traveled long distances to find raw material.

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 early people ...