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Wikenigma - an Encyclopedia of Unknowns Wikenigma - an Encyclopedia of the Unknown

Menopause

The decline in the number viable ovarian follicles, which leads to the menopause, is well documented (see Wikipedia), but, from an evolutionary perspective the reasons for its prevalence in humans are unknown.

Only two other mammals are known to exhibit menopause - orcas and short-finned pilot whales.

“Menopause is an evolutionary puzzle since an early end to reproduction seems contrary to maximising Darwinian fitness.”

Source : BioEssays 23.3

More details BBC, Aug 2016

“From an evolutionary perspective, it's very difficult to explain”

Also see :Ovarian agingplugin-autotooltip__plain plugin-autotooltip_bigOvarian aging

As women age, they experience a decline in reproductive performance leading to menopause (average 51 ± 8 years). This decline is tied to a reduction in the number of ovarian follicles present in the ovaries. The events that lead to to the decline - i.e. …

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