弗兰斯·稳瓦尔和萨拉·布罗斯南两个人,都是美国埃默里大学的教授、科学家。他们对一些卷尾猴进行了这样的训练或实验:让它们把礼券递给研究人员,并以此来换取食物。 实验开始的时候,绝大多数卷尾猴都很愿意配合实验,将礼券递给研究人员,然后得到同样的奖赏——一片黄瓜。就是说,有95％的卷尾猴高 Franschweig and Sarah Brosnan both are professors and scientists at Emory University. They trained or experimented with some capuchins by having them pass the gift certificate to the researchers and use it as a replacement for food. When the experiment started, most of the capuchins were willing to work with the experiment, handing the voucher to the researcher and getting the same reward - a slice of cucumber. That is to say, 95% of the capuchin are high