“From the attitude of pure choice, lengthy post-menopausal life is a puzzle,” stated UC Santa Barbara anthropology professor Michael Gurven. In most animals, together with chimpanzees — our closest primate brethren — this hyperlink between fertility and longevity may be very pronounced, the place survival drops in sync with the power to breed. In the meantime in people, ladies can stay for many years after their capability to have kids ends. “We do not simply acquire a number of further years — now we have a real post-reproductive life stage,” Gurven stated.
In a paper printed within the Proceedings of the Nationwide Academy of Sciences, senior creator Gurven, with former UCSB postdoctoral fellow and inhabitants ecologist Raziel Davison, problem the longstanding view that the pressure of pure choice in people should decline to zero as soon as copy is full.
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