A team of researchers from the University of Pennsylvania in Philadelphia, studied the brains, and social interactions of a group of rhesus macaques living on Cayo Santiago.
Adult howler monkeys use play to keep the peace pressandjournal.co.uk - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from pressandjournal.co.uk Daily Mail and Mail on Sunday newspapers.
Researchers from Anglia Ruskin University have revealed that adult monkeys increase play when they re faced with scarce resources, as a way of breaking tension within the group.
New research has discovered that adult howler monkeys use play to avoid conflict and reduce group tension, with levels of play increasing when they are