Kin-selected altruism is an evolutionary explanation for why biological kin other than parents are willing childcare providers or alloparents. Kin alloparents may increase lineage fitness by reducing maternal energy depletion and improving child survival through childcare activities. The aim of this research was to apply the hypothesis that kin-based alloparental care has benefits for child health in a western, educated, industrialized, rich, democratic context.

中文翻译：

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英国千禧年队列中基于亲属的同种异育和婴儿医院入院

亲属选择的利他主义是进化论的解释，说明了为什么父母以外的其他亲戚都愿意提供托儿服务或异性父母。亲属同族父母可以通过减少母体能量消耗并通过托儿活动提高儿童生存率来提高血统。这项研究的目的是应用这样的假说：在西方，受过教育，工业化，富裕，民主的背景下，基于亲属的同父母亲保健对儿童健康有益。