Some behaviors are instinctive and others have to be learned. This is as true for people as it is for the other members of the animal kingdom. Perhaps you, like me, may have thought until this moment ...

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 ...

Between the Old World, which includes Africa and Asia, and the New World, which includes Mexico and Central and South America, there are well over 200 monkey species. Yet, nearly all species of baby ...