Sex between the Races Lore?

[Iscah]

There are a lot of irl reptiles both extant and extinct that have horns???? And even so, no mammal has horns that work anything like Au Ra horns. Technically no irl animal uses horns for hearing that I know of, but the whole hearing via bone vibrations is a distinctly reptilian trait.

Again, I'm not saying Auri are actually reptiles; I'm just saying they seem more like being a transition point of sorts between reptiles and mammals. The scales are also implicitly described as resembling dragon scales on the character creation screen. Of course, that most likely is a result of convergent evolution from whatever species their ancestors were, but I doubt they're anything like what exists irl. This is the part I waggle my fingers and say "weeaboo fantasy bullshit". What the heck would we even call reptile kemonomimis? I just don't think full on mammal correctly identifies Au Ra. Sure, they hit almost everything on the mammal checklist, but so does every distinctly not mammalian Beast Tribe like Sahagin, Amal'jaa, and Gnath.

Re. horns: https://en.wikipedia.org/wiki/Horn_(anatomy)

Without having done further research, most of the examples are about mammals; horned reptiles seem to be grouped under having "other hornlike growths" though I don't exactly understand the distinction.

In any case, the point is that having horns doesn't inherently suggest having reptilian traits.

Basically, given the choice between "they're human-like mammals that have non-human traits found in other mammals" and "they're human-like mammals that have retained reptilian traits from their distant evolutionary past", it seems far simpler to assume they are fully mammalian. They have scales (probably more accurately scutes) but the rest of their skin is human-like, so it makes sense that the scales would most likely be structured like a creature evolutionarily closer to humans.

(Yes, evolution may not be in effect here, but let's assume it is for the sake of the argument.)

Remember that there's a lot of evolutionary distance between reptiles and humans - there are a lot of stages to go through for one branch of humans to somehow carry those reptilian traits while nothing inbetween or alongside them also has it.

And we know for certain that they're the same overall species as the other human races, or close enough to interbreed, as we have a historical record of a half-Hyur half-Auri child born in Sui-no-Sato. So they can't be some other reptilian race that has ended up in humanlike form by pure coincidence of convergent evolution.

However they ended up with their unique features, they probably evolved them independently of anything else since no other creature has horns over the ears like they do.