Chimpanzees Go Through Menopause, Too
nytimes.com
It is not obvious why selection should favor menopause or the continued survival of individuals that can no longer reproduce. The famous Grandmother Hypothesis had been used to explain the evolutionary significance of menopause. A new study conducted on the Ngogo chimpanzees community of wild chimpanzees in Uganda challenges this hypothesis. Science 27 Oct 2023 Vol 382, Issue 6669 DOI: 10.1126/science.add547
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Some whales have menopause too I think.
Orcas do, and their behavior fits the grandmother hypothesis pretty well.
And elephants.
That wouldn’t surprise me at all. They certainly live long enough.