Offspring fertility and grandchild survival enhanced by maternal grandmothers in a pre-industrial human society

Abstract Help is directed towards kin in many cooperative species, but its nature and intensity can vary by context. Humans are one of few species in which grandmothers invest in grandchildren, and this may have served as an important driver of our unusual life history. But helping behaviour is hard...

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Bibliographic Details
Main Authors: Simon N. Chapman, Mirkka Lahdenperä, Jenni E. Pettay, Robert F. Lynch, Virpi Lummaa
Format: Article
Language:English
Published: Nature Publishing Group 2021-02-01
Series:Scientific Reports
Online Access:https://doi.org/10.1038/s41598-021-83353-3