The researches studied the behavior of female brown capuchin monkeys.

研究人员研究了棕色雌性卷尾猴的行为。

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Capuchin monkeys often rub their bodies with a certain type of millipede.

卷尾猴经常用某类千足虫擦拭身体。

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The researchers suggest that capuchin monkeys, like humans, are guided by social emotions.

研究人员认为，卷尾猴和人类一样会受到社会情感的引导。

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Overhead, orange-billed toucans fly past, while troops of capuchin monkeys chatter nosily in the dense canopy.

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The capuchin monkeys were upset, selfishly, when they didn't get the grapes that their neighbors received.

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Sarah Brosnan, currently at Georgia State University, found that capuchin monkeys reacted dramatically to being treated unfairly.

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