Why do Au Ra females have boobs?

[Zadocfish]

This is a weird question. They have hair, they have non-scaly skin... they're basically just regular folk with horns and a few other minor differences. They're certainly mammals, from a biological perspective. Their relation to dragons seems significantly more distant than their relation to Hyume(ans). If they have regular skin and regular hair, it would be weirder if they DIDN'T have breasts.

One might more reasonably ask, "why don't Lalafell have breasts?" They're mammalian, too, and probably nurse their young... yet the females seem to lack the facilities necessary to do so. Where are their milk glands, if there's no room for them on their chests?

[Cilia]

While it is true that many animals develop unique shapes specifically for the purpose of attracting mates (though, oddly, in most cases it's the male that has them, not the female), there's another theory I read about regarding the origins of the human shape that I found interesting, as well. ... The theory was also an explanation as to why humans have so little body hair; like many mammals that spend a great deal of time in the water, extra body hair was superfluous.

I don't mean to debate the reason itself as to why women have visibly developed breasts. The point is there's no clear reason, and thus there doesn't need to be a clear or logical reason why Au Ra have breasts by extension. (Plus the original question was posed on the assumption that Au Ra are reptiles / scalekin... which is not true.)

Again, even if you want to argue that they are, it's probably a design choice stemming from how humanoid shapes are easier to identify and sympathize with. Even though Warcraft's draenei are blue-skinned people with horns and ungulate legs, they still have a basic human shape (and yes, the females have boobs) despite coming from a different world altogether. A human form is just easier to identify with... regardless of whether or not it makes sense. (Compare a race of aliens from Star Trek: Starfleet Command whose name I forget, but they had three arms, three legs, three sexes, and breathed methane. Not so easy to relate to, eh?)

This is a weird question. They have hair, they have non-scaly skin... they're basically just regular folk with horns and a few other minor differences. They're certainly mammals, from a biological perspective. Their relation to dragons seems significantly more distant than their relation to Hyume(ans). If they have regular skin and regular hair, it would be weirder if they DIDN'T have breasts.

One might more reasonably ask, "why don't Lalafell have breasts?" They're mammalian, too, and probably nurse their young... yet the females seem to lack the facilities necessary to do so. Where are their milk glands, if there's no room for them on their chests?

This comes back to the visibly developed breasts of human females being mostly fat and connective tissue. (And for the love of Hydaelyn, Au Ra are NOT related to dragons in any discernable way despite what appearances might suggest!) The mammary glands that produce milk are beneath the breasts, believe it or not, not inside of them. Humans are also the only mammals who display permanently enlarged breasts in females; the mammary glands and breasts of other mammals do enlarge during pregnancy and while nursing, but otherwise females remain similar to the males of their species in that respect.

Saying "Well they're mammals, obviously they'd have boobs!" isn't enough. (As much as I wish it were.)

As for why female lalafell appear to lack a significant bust? Well, aside from the "attracts attention" hypothesis, the only other leading hypothesis on why human females have permanently developed breasts is that it helps infants suckle. Seeing as lalafell faces are kind of flat, I doubt it would be an issue for them. (Design-wise lalafell are supposed to evoke young children regardless of how physically mature the lalafell in question actually is, so it makes sense from that angle as well.)