From a quick swipe of a banana to elaborate “ransoms” of smartphones, monkey shenanigans have earned these adorable animals a worldwide reputation as mischievous little thieves. Perhaps you’ve seen ...

Rhesus macaques in U.S. research laboratories frequently pull out their own hair, pace in tight loops, and rock back and forth, behaviors long attributed to the stress of captivity. A study published ...

Researchers recently conducted an open diffusion experiment to explore how capuchin monkeys learn novel behaviors, shedding light on the roles of social learning, observation, and affiliative ...

Male capuchin monkeys on a Panamanian island were documented carrying around infant howler monkeys for no clearly discernible reason. By Elizabeth Landau See more of our coverage in your search ...

We've seen it happen. For example, a visit to the Ouzoud waterfalls in Morocco's High Atlas led to an encounter with a group of nearby tourists feeding chips—supplied by the tour guide—to some waiting ...