The old "monkey see, monkey do" adage may rest on some neuroscientific evidence, finds a new Yale study. To examine how the primate brain facilitates cooperative behavior among individuals during ...

For years, scientists believed complex ideas like fairness, empathy, and morality belonged only to humans. But surprising ...

Three vervet monkeys with an adult grooming a juvenile. Credit: Charlotte Canteloup, CC BY-SA People living in different communities follow different social customs or norms. In some places, for ...

Spider monkeys possess a sophisticated social system, sharing "insider knowledge" about the best fruit trees in the forest rather than foraging randomly, new research has found. Scientists discovered ...