![]() ![]() “Our hypothesis is that human pair bonds evolved with increasing payoffs for mate guarding, which resulted from the evolution of our grandmothering life history.” “Pair bonds are universal in human societies and distinguish us from our closest living relatives,” Hawkes and colleagues write in the study. ![]() 7 edition of the journal Proceedings of the National Academy of Sciences. “It looks like grandmothering was crucial to the development of pair bonds in humans,” says Hawkes, senior author of the new study published online in the Sept. Now, Hawkes has used computer simulations to link grandmothering and longevity to a surplus of older fertile men and, in turn, to the male tendency to guard a female mate from the competition and form a “pair bond” with her instead of mating with numerous partners. University of Utah anthropologist Kristen Hawkes is known for the “grandmother hypothesis,” which credits prehistoric grandmothering for our long human lifespan. If you are in a special relationship with another person, thank grandma – not just yours, but all grandmothers since humans evolved. ![]()
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