But a study by Sarah Brosnan and Frans de Waal of Emory University in Atlanta, Georgia, which has just been published in Nature, suggests that it is all too monkey, as well.

• 但是这种公平感是在卷尾猴和人类身上各自独立演化而成，还是来自三千五百万前他们共同的祖先，这还是一个悬而未决的问题。