National Geographic News, Reporting Your World Daily

Monday, November 23, 2009

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