A few million years ago, our human ancestors began picking up rocks and using them as tools, marking the beginning of the Stone Age. Now a group of monkeys in Panama may have entered a Stone Age of ...

Capuchin monkeys use stones almost half their body weight as tools to open shellfish, nuts and other foods — among the first of its kind to do so You can save this article by registering for free here ...

The bearded capuchin (Sapajus libidinosus) is a nimble little monkey found in the forests of northeast Brazil. S. libidinosus is not a particularly picky eater, and will happily chow down on flowers, ...

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 ...

Capuchin monkeys use stones to pound open nuts on a solid surface, which is considered the most complex tool used by a nonhuman species ...

While smashing stones together, capuchin monkeys in Brazil accidentally created sharp-edged flakes that resemble cutting tools. Iran ally issues new global threat Bill Maher admits he was wrong about ...

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 ...

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 ...

Here a white-faced capuchin monkey perches on a tree branch in Manuel Antonio National Park in Costa Rica. A group from the same genus has been observed with stolen howler monkey babies on a small ...