Question

what is use of nipple in mammals

Answer 1

Mammals have nipples because the male and female bodies are built on the same general plan, programmed by the same genes, and diverge from each other only with respect to
(a) features important to reproduction and
(b) features that may be selected against in one sex or the other because they reduce reproductive success. It is simplest to build the male body on the same genetic/developmental plan as the female’s, and there is no significant harm or loss of reproductive success to males in having nipples, so there is no reason for them to “go away” through natural selection.

Answer 2

Nipple is the part on the breasts of woman or girl mostly at the middle covered with an undergarment bra or full form brassiere. People suck it, press it, or stimulate it in order to give or receive an orgasm. Babies or People drink the breast milk of the woman or girl which is released from the nipples, which is called as breastfeeding. Nudity of the nipples is not recommended in public or internet, nudity of nipples is only when you are alone or in front of your trustworthy partner or partners. Some people refer nipple as the most attractive body part of a woman yet it is covered...