Add Yahoo as a preferred source to see more of our stories on Google. This photo provided by researchers shows a baby howler monkey clinging onto a young adult male capuchin monkey on Jicarón Island, ...

As Alfie splashes and investigates, he demonstrates behaviors that parallel human infant development. Capuchins share nearly ...

The hooded capuchin monkey has been identified as being at a higher risk of extinction than scientists previously realized following University of Aberdeen and Fundación Para La Tierra research in ...

A white-faced capuchin monkey got very friendly with a US tourist visiting Honduras, climbing onto the Texas man’s head and even licking some sweat. Mary-Elizabeth Larson filmed the funny interaction ...

Tool-using Capuchin monkeys from Jicarón Island have been captured on-camera carrying kidnapped howler monkey infants. On Jicarón Island, in the Coiba National Park, off the western Pacific coast of ...

Wild capuchin monkeys don’t thoughtlessly grab any handy piece of stone to crack open hard-shelled nuts at snack time. These slender, agile primates select the best tool for the job, a new study finds ...

The semi-arid region of northeast Brazil offers little for a monkey to eat, except for a variety of hard-shelled fruits and seeds. So when capuchins arrived in this region about half a million years ...

Get unlimited access to ad-free articles and exclusive content. LiveScience Capuchin monkeys are known for their ability to recognize when they're being treated inequitably, but it now appears the ...

Male and female capuchin monkeys don't just behave differently—their brains look different too. According to a new study published by a team of researchers from Georgia State University, Harvard ...