When offered the opportunity to pass up their fruit juice in exchange for images of female monkey behinds, rhesus monkeys at Duke University gave their prized drinks right up.
当杜克大学的猕猴有机会用果汁来换取母猴的图片时，它们立刻给出它们认为最有价值的果汁。
When offered the opportunity to pass up their fruit juice in exchange for images of female monkey behinds, rhesus monkeys at Duke University gave their prized drinks right up.
当杜克大学的猕猴有机会用果汁来换取母猴的图片时，它们立刻给出它们认为最有价值的果汁。
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