I was unsure as to the catagory in which I should place this question.
2007-04-02 17:53:34 · 7 answers · asked by sculptorchic 2 in Science & Mathematics ➔ Biology
Heehee, i think a lot of the above readers missed the "male" section of the question. There is a basic cell that will one day become a human. It is the most basic form of "us". It is neither Male nor Female. Men have both X and Y which means we could have been female at one point. Because of this basic template of sorts, we were determined to have nipples before we were even discerened from male or female.
2007-04-02 19:51:53 · answer #1 · answered by jonyan326 2 · 1⤊ 0⤋
Its because all mammals start at the same template, this means, all mammals start out as a female until, the male hormons from Y chromosomes kick in to effect. :D This answer can be found on the book call "Why Do Men Have Nipples? Hundreds of Questions You'd Only Ask a Doctor After Your Third Martini "
Enjoy :P
2007-04-03 01:00:07 · answer #2 · answered by The Hard Truth 3 · 5⤊ 0⤋
It is a question of biology. All male mammals have them. When mother nature makes an organism (embryo) it has both male and female characteristics, kind of like spare parts, depending on the hormones that are produced by the chromosomes (XX in females, XY in males) the organisms will produce estrogen or testosterone and the secondary sex characteristics will develop, like: breasts in females; beard in males. But the organism is ready to go which ever way the hormones dictate therefore you get secondary sex characteristics.
2007-04-03 01:08:50 · answer #3 · answered by mikecujosdad 2 · 1⤊ 0⤋
Not all mammals have nipples - Monotremes and Echidnas lactate through their integument. For classes of mammals that do have males with nipples, nipples probably represent a vestigial structure, an adaptation that serves no purpose anymore.
2007-04-03 01:05:28 · answer #4 · answered by J 2 · 0⤊ 2⤋
Nipples develop before the actual horomone that determine sex are detected.
2007-04-03 01:05:05 · answer #5 · answered by Rudy V 1 · 1⤊ 0⤋
Well in case you haven't heard, us humans are considered mammals. A lot of us, both girls and boys, have nipples, some even have 3 or more! lol...... It's the way we are born and were created by god! Same with " Mammals "
2007-04-03 00:58:53 · answer #6 · answered by racin4slips 3 · 0⤊ 5⤋
Umm... because all mammals have to nurse their young and give it milk....
2007-04-03 00:57:00 · answer #7 · answered by Anonymous · 0⤊ 3⤋