They're nice when they're licked, tho.
2006-12-05 10:39:08
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answer #1
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answered by Minmi 6
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This Moment of Science will answer a question that must have been gnawing at you since you first noticed that human males have nipples. What genetic glitch left human males with female features?
Male nipples aren't exactly a genetic glitch: they are evidence of our developmental clock. In the early stages of life from conception until about 14 weeks, all human fetuses look the same, regardless of gender. At the tender age of 14 weeks post-fertilization , genetically-male fetuses begin to produce male hormones including testosterone. These hormones turn the androgynous fetus into a bouncing baby boy.
Here's where the developmental clock comes in. By 14 weeks, when the hormones turn on, the nipples have already formed. So, while our male fetus goes on to become a baby boy, he keeps his nipples, reminding all of us that people, male and female, started off the same way.
In most men, the nipples really don't change after this point, but some men can develop a condition called gynecomastia. In gynecomastia, the fatty tissue around the nipple develops and eventually appears similar to a female breast. This can occur whenever the testosterone level is lowered by medications, such as those that treat prostate cancer, and by natural hormonal changes due to obesity, adolescence or aging.
Luckily, most of us don't worry too much about male nipples, so men never have to worry about finding swimtrunks and a bikini top that fit.
So no we don't all start as females, we start genderless until the determined hormone kicks in.
2006-12-05 10:13:51
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answer #2
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answered by unknwndreamer 3
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Guys has nipples because while in the womb of their mother, babies start as a girl!(the earliy stages at least) Crazy as it sounds, all guys were was once a girl...
2006-12-05 10:09:09
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answer #3
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answered by jojot001 2
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I'm a guy with larger than average nipples for a guy. They feel good when they are pinched and licked.
2006-12-05 12:25:36
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answer #4
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answered by Anonymous
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All babies are both male and female at first, they don't choose a definite sex until after development has begun. Nipples develop at the third or fourth week; sex develops at the seventh. It's just part of human development.
2006-12-05 10:41:28
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answer #5
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answered by Corruption 3
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who said men don't need nipples? Lots of women are turned on by them.
2006-12-05 10:11:02
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answer #6
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answered by misterbig356 2
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ive heard this question before and they said that nipples are like arms and legs, they are just a part of the human body.
2006-12-05 11:00:55
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answer #7
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answered by Anonymous
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i would think everybody would know this answer because we all had to have some sort of sex ed class in elementary school and then learned more about it in high school. all babies while in the beginning stages of growth start out as female. later the chromosomes are the deciding factor and little girls may become little boys.
2006-12-05 10:19:54
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answer #8
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answered by Megan S 1
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Nipples are simply for girls pleasure of chewing them and nipping at them when they are horny.
2006-12-05 10:08:08
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answer #9
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answered by Taylor M 1
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who knows but some guys have big pointy nipples like girls. lol
2006-12-05 10:20:21
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answer #10
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answered by mostinfamous 1
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Because if we kill off all the women, then we'll have to become a-sexual and reproduce ourselves. It's nature's way of giving us insurance.... you know like Chris Rock says... "In case shi* happens"!
LOL
2006-12-05 10:09:48
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answer #11
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answered by almondjoy_1000 3
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