Plus, researchers could hear adult howler monkeys calling back and forth with the infants, who would sometimes try to crawl ...

Researchers found capuchins on Jicarón Island abducting baby howlers, raising questions about primate behavior and cultural ...

Male capuchin monkeys on a Panamanian island were documented carrying around infant howler monkeys for no clearly discernible reason.

The Scopes “monkey trial” garnered international attention, and the battle that was fought continues in some form in other ...

At first, behavioral ecologist Zoë Goldsborough thought the small figure seen on the back ... she noticed the same adult monkey — a white-faced capuchin nicknamed “Joker” for the scar ...

Scientists were left baffled after examining 15 months' worth of footage showing the monkeys doing something they'd never ...

"Monkey see, monkey do" has had distressing consequences for howler monkeys on a small island off the coast of Panama.

"I was very shocked" to see a white-faced capuchin monkey with a baby howler monkey ... The scientists nicknamed the capuchin Joker because the small scar at the side of its mouth reminded them ...

"I was very shocked" to see a white-faced capuchin monkey with a baby howler monkey ... The scientists nicknamed the capuchin Joker because the small scar at the side of its mouth reminded them ...

In Panama, the Smithsonian Tropical Research Institute – the only bureau of the Smithsonian outside the United States – ...