A recent study has shown how some species of monkeys have complex social hierarchies and how some are prone to taking risks ...

A recent study out of Bangladesh confirms a concerning trend in monkey behavior, potentially leading to the extinction of two species of langurs: Phayre's langurs and capped langurs. Mongabay reported ...

Rhesus macaques in U.S. research laboratories frequently pull out their own hair, pace in tight loops, and rock back and ...

Male capuchin monkeys on a Panamanian island were documented carrying around infant howler monkeys for no clearly discernible reason. By Elizabeth Landau Capuchin monkeys don’t generally hang out with ...

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 ...

A howler monkey infant, only a few days old, clings to a subadult white-faced capuchin monkey as it uses tools. Brendan Barrett / Max Planck Institute of Animal Behavior In June 2022, while watching ...

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 ...

UC Davis Ph.D. candidate Abigail Morris is studying how environmental factors influence the decisions individual monkeys make when they disperse from their family groups in the Amazon. (Courtesy photo ...

Introduction / Christina J. Campbell -- Morphology and evolution of the spider monkey, genus Ateles / Alfred L. Rosenberger ... [et al.] -- The taxonomic status of spider monkeys in the twenty-first ...