Why do males have nipples?

Question

And if they do not serve a purpose... will evolution eventually nix this trait of men?

Answer 1

This question comes up here at least 3 times a week.

Here's the right answer:

Mammalian embryos are all female when they first start to develop. At some point (depending on species) fairly early in the pregnancy, the sex chromosome kicks in and directs futher development as male or female. But, by then, the nipples have been programmed into the final product.

Answer 2

Just a thing that is common between males and females... Like we both half legs, can both grow long hair... They are kind of pointless in males... but evolution won't get rid of it.


and unlike what the first person who answered said.. sex is not determined by pH levels in the womb... sex is completely genetic, and is decided at conception. It's between the X and Y chromosomes.

Answer 3

they play with them like everybody else ,but will never admit to that ,and nature has prepared them for the eventuality they may change their mind about their current gender

apart from that male and female bodies do in reality not differ very much on basic design

and the sex is not decided until the kid is well established in the womb depending of the PH.

so both you and evolution handsof--- our nipples

Answer 4

I've always wondered that too, since most male animals don't have them.
It probably has something to do with the way fetuses are formed during pregnancy.

Answer 5

Because males are mamals, too. Just that simple..