A group of male capuchin monkeys kidnapped baby howler monkeys – a different species – on a small island of Panama. Video shows the howler monkeys clinging to the male capuchin monkeys’ backs, but the ...

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 ...

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 ...

It's no secret that humans and primates share many common traits (and the vast majority of our DNA), but some monkey behaviors still leave scientists baffled. One of these behaviors was seen as ...

A 33-year-old Texas man was sentenced in San Diego federal court Friday for coordinating the smuggling of at least six protected baby Mexican spider monkeys through the Calexico Port of Entry, ...