Re: Why don't male nipples work?



On May 20, 10:02 pm, Bill Morse <wdNOSPAmo...@xxxxxxxxxxxxxxxx> wrote:
There have been a number of discussions on the NG, not to mention an article
by Gould, on why some male mammals have nipples. My wife recently raised
the question of why no male mammals have functional nipples. Why aren't
there any male breast feeders?

I am not looking for explanations based on why female mammals are more
likely to be primary care givers than male mammals. There are still
examples in mammals of relatively equal care, and in this case one might
expect that functional male nipples could be an advantage and would be
selected. Is it just chance that it hasn't happened, or is there some
developmental reason why it is difficult?
--
Yours, Bill Morse

There is a condition in which males develop "breasts" that sometimes
produce milk. This condition is known as Gynecomastia. Here is a
Wikipedia link if you want a quick summary of the topic:
http://en.wikipedia.org/wiki/Gynecomastia.


.



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