This past October, residents of Mount Vernon, a neighborhood in South Africa, heard a commotion and found two troops of vervet monkeys clashing outside a snack shop on their street.

Former National Institutes of Health Director Francis Collins used a private email to discuss an NIH lab’s history of traumatizing baby monkeys as he sought to contain a brewing scandal and kept ...

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 ...

Two of six spider monkeys illegally brought into California are shown above with their troopmates where they are now living at Chicago's Brookfield Zoo. (U.S. Attorney's Office) A Texas man was busted ...

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 ...