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When monkeys break the rules of nature
On a remote Panamanian island, researchers have documented an unusual and puzzling behavior: young male capuchin monkeys carrying baby howler monkeys for days at a time. The phenomenon, captured on ...
NEW YORK -- Call them knockoffs. Rock-smashing monkeys in Brazil make stone flakes that look a lot like tools made by our ancient ancestors. Scientists watched as Capuchin monkeys in a national park ...
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