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 ...

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, ...

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 ...

Primates are a group of mammals that includes humans and our close relatives, such as apes, monkeys and lemurs. Monkeys, such as capuchins and macaques; prosimians, like lemurs and tarsiers; lesser ...

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 ...