Add Yahoo as a preferred source to see more of our stories on Google. Primatologist Susan Perry of UCLA has spent much of the past 35 years studying the complex social lives of white-faced capuchin ...

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 ...

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A young male white-faced capuchin monkey carrying a baby howler monkey, caught by a remote camera trap on Jicarón. These are for editorial purposes relating to this press release and the study ...