Follow Diego Arauz Chaves, an ecotourism guide in Costa Rica, as he takes filmmakers on his boat into the mangroves to get up close to a Capuchin troop he knows intimately. These capuchins represent ...

Primatologist Susan Perry of UCLA has spent much of the past 35 years studying the complex social lives of white-faced capuchin monkeys, at a field site she established in one of the remaining patches ...

Researchers used the environmental circumstances and fecal samples collected from the six years prior to the severe El Ni o drought in Costa Rica to study the relationship between the endocrinologic ...

The immune performance of wild capuchin monkeys declines when the animals experience higher temperatures, and younger monkeys seem to be particularly vulnerable to heat, according to a University of ...