It is. I wasn’t being specific enough, sorry. Actual use in terms of evolutionary fitness. There are no reasons for them evolutionarily other than they are a byproduct of fetal development.
That’s the thing with natural selection though, as long as a trait isn’t deleterious and it’s common enough it’ll generally stick around. There’s no pressure for males to not have nipples.
Licking is an actual use.
It is. I wasn’t being specific enough, sorry. Actual use in terms of evolutionary fitness. There are no reasons for them evolutionarily other than they are a byproduct of fetal development.
Anything that makes people hornier and more likely to procreate is an evolutionary advantage.
That’s the thing with natural selection though, as long as a trait isn’t deleterious and it’s common enough it’ll generally stick around. There’s no pressure for males to not have nipples.