Brown capuchin monkeys were given a simple exchange: hand over a token and receive a treat. Everything changed when one ...

Two adult female capuchin monkeys in an aggressive coalition alongside a juvenile. These are for editorial purposes relating to this press release and the study “Jacobson*, Crofoot, Finerty, Perry & ...

CapuchinAI is a system created to study the cognitive differences of individual wild primates, who all participate by choice ...

Bearded capuchin monkeys hunt more small vertebrates when fruit is scarce, according to a long-term field study in Brazil.

Capuchin monkeys get in a lather over communal onion baths, but rather than being relaxed after this social activity, they become unusually aggressive FORGET lavender bubble baths, capuchin monkeys ...