Because males were females until the right amount of chemicals were introduced to the fetus. Take enough estrogen and males can produce milk and no longer have useless nipples.
Comment on Why do Orks from Warhammer 40K have nipples?
BreadOven@lemmy.world 2 months ago
What use are nipples on males?
zaph@sh.itjust.works 2 months ago
HatchetHaro@lemmy.blahaj.zone 2 months ago
sexual stimulation
PhlubbaDubba@lemm.ee 2 months ago
They actually are capable of producing a small amount of milk, it’s just that doing that requires so much effort for so little reward that feeding babies became the mother’s job after a few thousand generations of mammals being a thing.
EleventhHour@lemmy.world 2 months ago
Lick one and find out
BreadOven@lemmy.world 2 months ago
Hmmm. Can’t say I’ve licked one personally, but I see what you’re seeing. I guess I meant an actual use for them. More of a rhetorical question I guess.
spankmonkey@lemmy.world 2 months ago
Licking is an actual use.
BreadOven@lemmy.world 2 months ago
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.