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10 Random And Fascinating Facts About Human Sexuality| thumbnail text - 6. The egg actually chooses the sperm Most of us imagine conception as a race to egg where the fastest sperm wins and gets to pass on its genes to the baby-to-be. This is false. In reality, eggs have sophisticated biological mechanisms that actively choose which sperm they allow in and it isn't always the first one to arrive. the

10 Random And Fascinating Facts About Human Sexuality

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