Scientists studying wild vervet monkeys in South Africa found that the animals were better able to learn a task when it was demonstrated by a female. The team from the University of Neuchatel, Switzerland, compared the animals' responses to those of a simple box-opening task demonstrated by males.

科学家在南非研究野生长尾猴的时候发现，当雌性动物做示范时，其它观摩动物能够更好地完成学习任务。瑞士 Neuchatel 大学的研究小组在这个项目中通过让雄性猴子和雌性猴子分别示范一个简单的开瓶盖的任务，比较了动物对主导雄性或雌性猴子的反应。