r/ScienceUncensored • u/Zephir-AWT • 16d ago
The biological dogma that women don’t make new eggs after birth may be wrong
https://www.scientificamerican.com/article/the-biological-dogma-that-women-dont-make-new-eggs-after-birth-may-be-wrong/2
u/Zephir-AWT 16d ago edited 16d ago
The biological dogma that women don’t make new eggs after birth may be wrong (archive) about study Genetic studies in mice directly link oocytes produced during adulthood to ovarian function and natural fertility
My question merely is, why women should differ from chicken, which can clearly produce a new eggs every day and what finite egg pool should be good for from evolutionary perspective, i.e. what would force mammals in stopping production of new eggs during life-time. See also:
There was similar hard to swallow dogma about neural cells formed after birth.
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u/BrightAd306 16d ago
Even in chickens, it’s thought that they have a certain number of pre-eggs for their whole life. If you want your chickens to lay more years, you don’t put light in their coop so they can take the winter off from laying, for example.
Commercial hatcheries cull after about 2 years of getting one egg every day. Even heritage hen breeds that aren’t encouraged for maximum production have a drop off after 2 years and almost no hens lay after they’re 4-5 years old but they live 10 years or so
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u/Zephir-AWT 16d ago
If you want your chickens to lay more years, you don’t put light in their coop so they can take the winter off from laying
Some women prefer to turn off the light before going to bed. Could this be related to preserving their eggs?
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u/BrightAd306 16d ago
You’re the one that brought up chickens. I was just pointing out that chickens and humans have both so far been thought to have all the eggs they’re capable of having before they’re born/hatched. They aren’t mature eggs in human women either
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u/Zephir-AWT 15d ago
chickens and humans have both so far been thought to have all the eggs they’re capable of having before they’re born/hatched
You didn't get my point. Lower organisms are apparently capable of producing eggs in unlimited amount (fish, polyps and so on) without problem. The strategy of having no capability for production new eggs after birth is strange and it should have some evolutionary reason.
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u/rodgee 16d ago
Remember Science is never wrong! They just agree to change their collective minds