Prefer Newsweek on Google to see more of our trusted coverage when you search. An escaped monkey running rampant around the Irish countryside is just looking for love and should not be targeted by ...

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 ...

Researchers recently conducted an open diffusion experiment to explore how capuchin monkeys learn novel behaviors, shedding light on the roles of social learning, observation, and affiliative ...

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 ...

Two adult female capuchin monkeys in an aggressive coalition alongside a juvenile. These are for editorial purposes relating ...

A study tracked 12 neighbouring groups of white-faced capuchin monkeys across three decades, combining on-the-ground ...