Yes, I know. This is evolution 101. Although it only needs a slight advantage/disadvantage to make a difference over evolutionary time. The foreskin got bigger and more complex in humans. There must have been some reason for this.
I don't know what you mean? Obviously the foreskin evolved by natural selection. How else would it have come to be?
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The foreskin came to be because it did. To claim every part of us is specifically optimized by evolution isn't correct. Some things just are good-enough and are there because they didn't get overly in the way.
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