A group of white-faced capuchins on a remote island have started stealing infants from another primate species, and ...

A capuchin named Joker started the apparent trend, leading researchers to suspect "there was something a little quirky about ...

Capuchins are also known for developing odd social rituals across their range. Scientists studying mainland populations have ...

Young male capuchins have developed a strange trend of acquiring baby howler monkeys. It doesn't end well for the babies.

White-faced capuchin monkeys on Jicarón Island have started abducting baby howler monkeys, surprised scientists report. It’s possible this behavior comes in waves, but it had not been detected in the ...

The scientists nicknamed one capuchin kidnapper Joker because the scar at the side of its mouth reminded them of the "Batman" ...

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

A rare cultural behavior spreads among young male capuchins and baby howlers, raising questions about animal traditions and ...

Scientists have found surprising video evidence of what they call monkey kidnappings – and they’re trying to figure out why.

Scientists studying camera trap footage from Jicarón Island spotted something unusual: a capuchin monkey carrying an infant howler monkey on his back. Now, they’re trying to learn what it means.

The Roger Williams Park Zoo is mourning the loss of one of its beloved howler monkeys. Ramone passed away peacefully ...

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