For our distant ancestors – when disease, poor diet and minimal healthcare meant that few people lived past 30 - looking for a more suitable partner was necessary, researchers assert.

他们认为，原始时期，由于疾病、食物匮乏和缺乏医疗保障等原因，我们的祖先很少能活过30岁。因此，不停找更合适的配偶非常必要。

Despite anecdotal claims about cheating, no study has shown that humans are predisposed to monogamy or non-monogamy.

除了从科学角度对坊间出轨事件的评论，目前几乎没有研究涉足“人类骨子里是否信奉一夫一妻制”领域。

A study carried out by Rafael Wlodarski and a team of researchers at Oxford University looking into infidelity found a correlation between the length of a individual's ring finger and the likelihood that they would cheat on a partner.

Rafael Wlodarski曾带领哈佛大学一个实验小组进行有关“不忠”问题的调查。发现无名指长度和是否容易出轨有一定关系。

However, they stressed that they could not find a causal link.

但他们无法找出具体的联系。

Professor Robin Dunbar of Oxford University said the differences were “subtle” and “only visible when we look at large groups of people”.

哈佛大学教授Robin Dunbar表示，这个关系并不十分明显，调查基数很大时候才会显现出来。

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