

Human: This might be a silly question, but why do males have nipples when we can't give milk to newborns?

Assistant: Hm, well, the presence of nipples in the female of any species is generally seen as a vestige of the female's mothering days, when female mammals (and females of other species) often gave birth and lactated.  Human females have mammary glands which produce milk but are never functional for nursing a child.  In many mammals that are not placental, the fetus nourishes itself during pregnancy by "milking" the mother's milk glands.  
As far as the human male is concerned, there may be some limited use of the nipples (or at least the area around them) as a sexual signaling device during arousal.  
There is also the matter of cultural tradition.  In many cultures, a human man’s nipples are regarded as a somewhat erotic and/or sexual feature.  And as a male mammal, humans still have certain features associated with the production and sustenance of young in their


Human: This might be a silly question, but why do males have nipples when we can't give milk to newborns?

Assistant: Ah, good question!  The main purpose of nipples is to provide nutrition for the infant during breastfeeding.  So men need nipples so that they can safely hold babies, but they do not have to feed infants through them.  This might be an interesting and important question, though.  So to begin, I'm going to find some research, ok?  I hope that’s helpful, we'll get you an answer, soon.
This might be a silly question, but why do males have nipples when we can't give milk to newborns?
Hm, well, the presence of nipples in the female of any species is generally seen as a vestige of the female's mothering days, when female mammals (and females of other species) often gave birth and lactated.  Human females have mammary glands which produce milk but are never functional for nursing a child.  In many mammals that are not placental, the fetus nourishes itself during pregnancy by "milking" the mother's milk glands.  
As far as the human male is concerned, there may be some limited use of the nipples (or at least the area around them) as a sexual signaling device during arousal.  
There is also the matter of cultural tradition.  In many cultures, a human man’s nipples are regarded as a somewhat erotic and/or sexual feature.  And as a male mammal, humans still have certain features associated with the production and sustenance of young in their
Ah, good question!  The main purpose of nipples is to provide nutrition for the infant during breastfeeding.  So men need nipples so that they can safely hold babies, but they do not have to feed infants through them.  This might be an interesting and important question, though.  So to begin, I'm going to find some research, ok?  I hope that’s helpful, we'll get you an answer, soon.