Robin Baker: Sperm Wars

Robin Baker puts forward the thesis that evolution has programmed men to conquer and monopolise women while women, without even knowing they are doing it, seek the best genetic input on offer from potential sexual partners. Facts of life presented include: 10 per cent of children are not fathered by their fathers, less than 1 per cent off a man's sperm is capable of fertilizing anything - the rest is there to fight off other men's sperm, smart vaginal mucus encourages some sperm but blocks others, and a woman is far more likely to conceive through a casual fling than through sex with her regular partner. Baker describes fictionalized scences and then explains the science behind the actions to demonstrate how our everyday behaviour fits into a pattern of evolution.

 human evolution sex women selection genetics mating

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