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 ...

Alejandro Zúñiga / The Tico Times. Howler monkeys, native to Costa Rica, are increasingly threatened by human activity. Traditionally known for swinging from branch to branch using their tails, these ...

If you liked this story, share it with other people. Following a deadly yellow fever outbreak in 2016, brown howler monkeys are slowly making a recovery through targeted vaccination and reintroduction ...