Quote:
Originally posted by CET
There's another side to this. Something like 95% of a man's sperm cells are not fertile, because their job is to kill other sperm cells. Why would men need sperm cells that do nothing but kill other sperm cells, unless sperm cells that are not his need killing in order to perpetuate his genes? This ought to tell us that humans in general are naturally promiscuous.
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I agree that men are generally promiscuous, BUT, where is this thing that sperm cells are designed to kill other sperm cells?
Impregnation relies on the sperm cells ability to swim through and penetrate/attach to the egg. However, many cells don't make it, but I don't think they are eliminated by other sperm cells...