Robin Dunbar's book, "The Science of Love and Betrayal", is—perhaps surprisingly—easier to get to grips with. Dr Dunbar, a professor of evolutionary anthropology with a study in this week's science section (see article), is best known for "Dunbar's number", the limit to the number of people with whom one can maintain stable social relationships. He laments that scientists have largely ignored the concept of love. In this book he bridges the gap between the biological explanations for humans' romantic behaviour and the psychological, historical, social and evolutionary contexts that help to shape it. 相比之下,罗宾.邓巴(Robin Dunbar)的书《爱与背叛的科学》更容易理解,这一点或许出人意料。邓巴是一名进化人类学教授,他在本期杂志的科技部分也发表了一篇研究。邓巴以其提出的“邓巴人数(Dunbar's number)”最为出名。邓巴人数指能与某个人维持稳定人际关系的人数上限。他感到遗憾的是,科学家们大都忽略了爱情的含义。邓巴在书中不仅探讨了人类做出浪漫行为的生物学原因,还将这些原因与起到推波助澜作用的心理、历史、社会和进化环境等因素更为紧密地联系起来。
In particular, he is interested in why humans have developed such an affinity for "pairbonding", despite the fact that strictly monogamous mating and rearing systems are not terribly advantageous in evolutionary terms. Monogamy is not unique to humans. What is unique, however, is the intensity with which the species falls in love. Nearly every human culture in history exhibits this complex sense of longing, Dr Dunbar observes. 尽管严格的一夫一妻婚育制度并非十分有利于人类的进化,但人们还是喜欢有固定的配偶,邓巴对这一现象的原因尤其感兴趣。一夫一妻制并非只存在于人类社会,其它物种之间也有,但人与人相爱的深度却是其它物种不可比拟的。据邓巴观察,从古至今,几乎每个时期的人类文明都显示出了这种渴望爱情的复杂情感。
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