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Women shit test even when they aren’t thinking about it.
Women’s bodies BLOCK weak sperm by creating a ‘bottleneck’ in the uterus where stronger swimmers force their way through
The female reproductive tract is cleverly shaped to weed out weak sperm.
That’s the claim made by scientists at New York’s Cornell University, who say a series of ‘pinch points’ – such as a narrowing between the uterus and fallopian tubes – is the biological equivalent of an assault course.
As a result, only the strongest sperm cells can push their way through the bottleneck to reach the egg, creating a quality control process for fertilisation.
This adds further weight to the suggestion that the female body undertakes a selection process, rather than conception being random.
A shit test is basically a filter for men with alpha attitudes. Even at the level of the uterine tract, women are filtering the beta sperms from the ZFG sperms.
It would be interesting to know if this sperm selection process applies to extra-pair ejaculate competition as well as to single dose ejaculate.