However, whether such a sense of fairness evolved independently in capuchins and humans, or whether it stems from the common ancestor that the species had 35 million years ago, is, as yet, an unanswered question.然而,这种公平感是卷尾猴和人类身上各自独立演化而来的,还是都来自三千五百万年前他们共同祖先的遗传,还是一个悬而未决的问题。
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