Institute of Biology, University of Neuchâtel, 2000 Neuchâtel, Switzerland.
Behav Brain Sci. 2013 Feb;36(1):83-4. doi: 10.1017/S0140525X12000738.
Baumard et al. propose a functional explanation for the evolution of a sense of fairness in humans: Fairness preferences are advantageous in an environment where individuals are in strong competition to be chosen for social interactions. Such conditions also exist in nonhuman animals. Therefore, it remains unclear why fairness (equated with morality) appears to be properly present only in humans.
在个体之间竞争强烈以选择进行社交互动的环境中，公平偏好是有利的。这种情况在非人类动物中也存在。因此，为什么公平（等同于道德）似乎只在人类中存在，这仍然不清楚。
