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 ...

A young male nicknamed Joker was probably the first to start carrying a howler monkey baby on his back for days on end. Then a group of other young males started to copy him. Here a white-faced ...

Fascinating new video footage captured on a remote island has captured a bizarre new phenomenon - baby monkeys being abducted by another species. The unprecedented craze of so-called 'monkey ...