NEW YORK -- Call them knockoffs. Rock-smashing monkeys in Brazil make stone flakes that look a lot like tools made by our ancient ancestors. Scientists watched as Capuchin monkeys in a national park ...

Stone fragments produced by macaques in Thailand have been found to bear similarities to early human ancestor tools unearthed in some of the earliest archaeological sites in East Africa, a new study ...

Capuchin monkeys in Brazil have been seen making sharp stone flakes. It was previously thought that only humans and their ancestors had flaking... Those Ancient Stone Tools — Did Humans Make Them, Or ...

A capuchin monkey in Costa Rica. Scientists studying the stone-smashing habits of bearded capuchin monkeys in Brazil have found that the primates inadvertently produce stone flakes that look very ...

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 ...

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 ...

We humans are nothing if not inventive. Our innovations have come to underpin virtually every facet of daily life—from what we eat to how we communicate. This ingenuity is intrinsically linked to both ...