National Geographic News, Reporting Your World Daily

Thursday, October 28, 2010

Photo: Monkeys "Go on Strike" When They Sense Unfairness


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A white-faced capuchin monkey chews on a stick in Costa Rica. In a recent study, similar monkeys called brown capuchins "went on strike" and refused to perform routine tasks when they saw others receiving greater rewards for the same tasks.

Photograph by John J.Mosesso/NBII