"Why have male nipples not dissapeared?
There seems to be a logical explanation about why women have nipples - for babies. But why do men's bodies retain what appears to be redundant body parts? The Darwinian natural selection process would seem to dictate that male nipples really should not be there. So what's the deal? Why do men have nipples?
The answer is that as embryos men and women have similar tissues and body parts. If anything the embryo follows a 'female template'. That is why nipples are present in both sexes. It is the effect of the genes, the Y chromosome and the hormone testosterone that brings about the changes and masculinises the embryo. Testosterone promotes the growth of the penis and testicles. Because nipples are there before this process begins the nipples stay!
Nipples and breast tissue have no function as such except for perhaps protecting the heart and lungs from injury."
2007-07-19 09:10:52
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answer #1
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answered by Anonymous
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for some reason during evolution they stuck around. Perhaps in a million years we wont have them any more.
2007-07-19 09:12:06
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answer #2
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answered by Anonymous
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They dollop before gender is determined.
2007-07-19 09:11:28
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answer #3
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answered by Anonymous
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For us to play with
2007-07-19 09:10:38
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answer #4
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answered by Anonymous
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Let your sweetie have a go at them and you will see what they are for.
2007-07-19 09:10:44
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answer #5
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answered by Anonymous
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Rueben said it all.
2007-07-19 09:16:39
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answer #6
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answered by Lexy 6
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Because they are women in disguise...
2007-07-19 09:13:07
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answer #7
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answered by powerpuffcutie24™ 6
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They're there to be sucked on. Or nibbled. Whatever your preference.
2007-07-19 09:09:55
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answer #8
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answered by jamoncita 5
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for me to pinch when you're naughty!
2007-07-19 09:11:19
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answer #9
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answered by tshffman 4
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same with eyebrows!
2007-07-19 09:09:43
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answer #10
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answered by Anonymous
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