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.

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 ...

Archaeologists are testing ancient stone tool designs using very modern engineering. In the journal Royal Society Interface, a group of three archaeologists based in England and Spain surveyed 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 ...

Captive orangutans that had never seen stone tools have spontaneously picked up rocks and used them as hammers. One individual also used a sharp stone as a cutting tool. The finding suggests that even ...

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 ...

Monkeys using stones to crack open nuts generate many stone flakes accidentally that look exactly like the ones archaeologists have long thought... Stone flakes made by modern monkeys trigger big ...