An escaped monkey running rampant around the Irish countryside is just looking for love and should not be targeted by hunters, its owner urged. Willie Heffernan, owner of the Rathdrum Monkey Sanctuary ...

(CNN) — At first, behavioral ecologist Zoë Goldsborough thought the small figure seen on the back of a capuchin monkey in her camera trap footage was just a baby capuchin. But something, she said, ...

Many nonhuman primate species show sex differences in behavior, which suggests that there may also be sex differences in brain organization. In order to better understand the evolution of sex ...

On an island in Panama, a fad that one researcher called "viscerally disturbing" has recently taken off among a group of young male monkeys. These adolescents and juveniles have started to kidnap the ...

Male capuchin monkeys on a Panamanian island were documented carrying around infant howler monkeys for no clearly discernible reason. By Elizabeth Landau Capuchin monkeys don’t generally hang out with ...

Observations of Coiba’s tool-using immature capuchin monkeys show them carrying abducted infant howler monkeys. What is the reason for this behavior? Vanessa Crooks Caught in the act! Capuchin monkeys ...

Study published in PNAS by researchers from Brazil and the UK shows that primates from the Brazilian semi-arid biome are able to acquire new knowledge as long as their presence is tolerated by other ...