Grandmas invest more in grandchildren with their DNA

October 2009
New Scientist;10/31/2009, Vol. 204 Issue 2732, p19
The article reports on a study which tested the grandma hypothesis, which suggests that women evolve to live far beyond their reproductive years in order to safeguard the genes they share with their grandchildren. According to Leslie Knapp and her team at the University of Cambridge in England, paternal grandmothers might invest less in their grandsons than in their granddaughters, which might influence life expectancy. They examined records from seven countries from the 17th century to the present for the study.


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