Seeing someone else receive a bigger portion can turn a perfectly civilized meal into a personal betrayal. In one experi ...

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 ...

Deep within the forest, monkeys can be very social creatures: they play, fight, vocalize, and even groom one another within their social groups. But as University of Toronto Mississauga primatologist ...

Part I. Introduction. 1. Why is it important to continue studying the behavioral ecology and conservation management of howler monkeys? / Martín M. Kowalewski, Paul A. Garber, Liliana Cortés-Ortiz, ...

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 ...

A team of neuroscientists at the University of Pennsylvania has, for the first time, observed how social behavior is encoded in the brain when monkeys are doing normal, everyday things rather than ...

Researchers have developed 'Dynamic Prospect Theory,' which integrates the most popular model in behavioral economics -- prospect theory and a well-established model from neuroscience -- reinforcement ...

Two harpy eagles entered a rainforest filled with roughly 65 howler monkey troops, and the primates were dangerously unp ...

Spider monkeys are known for their acrobatic abilities. Learn more about their captivating behavior, why they are endangered and how some are proving more adaptable than expected. In a tropical forest ...

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 ...

Source: Wald1siedel, via Wikimedia Commons. Distributed under a CC BY-SA 4.0 license. Across the animal kingdom, numerous species engage in a behavior known as anointing. This is where animals rub ...

In a 2011 Psychology Today post called "What Monkeys Can Teach Us About Human Behavior," Michael Michalko described an experiment involving five monkeys, a ladder, and a banana. Descriptions of this ...