Observations of Coiba’s tool-using immature capuchin monkeys show them carrying abducted infant howler monkeys. What is the reason for this behavior? Vanessa Crooks Caught in the act! Capuchin monkeys ...

A lively moment unfolds as a large group of monkeys gathers near humans while searching for food together. The monkeys move actively around the area, closely watching people who may be carrying food.

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 ...

Capuchin monkeys on a remote Panamanian island are abducting babies from howler monkey families, in a first-of-its-kind trend. At first, the researchers thought it was a case of “one individual who ...