Grandparental investment and reproductive decisions in the longitudinal 1970 British cohort study.

Abstract

There has been a recent increase in interest among evolutionary researchers in the hypothesis that humans evolved as cooperative breeders, using extended family support to help decrease offspring mortality and increase the number of children that can be successfully reared. In this study, data drawn from the 1970 longitudinal British cohort study were… (More)
DOI: 10.1098/rspb.2011.1424

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