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 ...

When monkeys in Thailand use stones as hammers and anvils to help them crack open nuts, they often accidentally create sharp flakes of rock that look like the stone cutting tools made by early humans.

This image provided by the Smithsonian's Human Origins Program shows artifacts found in southern Kenya's Olorgesailie Basin. For hundreds of the thousands of years, people living there made and used ...

(CN) – A newly discovered archaeological site in Ethiopia shows modern humans began incorporating stone tools into daily life about 60,000 years earlier than previously thought, suggesting our ...

Macaques use stones as hammers to smash open food items like shellfish and nuts. (Lydia V. Luncz) When monkeys in Thailand use stones as hammers and anvils to help them crack open nuts, they often ...