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.

Nicholas Blackwell and his father went to a hardware store about three years ago seeking parts for a mystery device from the past. They carefully selected wood and other materials to assemble a ...

Man's ancestors transported stones over long distances to craft tools 2.6 million years ago - 600,000 years earlier than previously thought. Stone tools unearthed in Kenya reveal that hominins ...