Quote Originally Posted by RicaRuin View Post
Before this goes too far - I'd fathom that just like some races in the real world, those aren't biologically compatible and thus wouldn't produce offspring.
Given as real world genetic hybrids require a close genetic match between parents to produce offspring, and most beast tribes have very different biology (sylphs reproduce more like plants, amalj'aa are allergic to large quantities of water, pixies are the reincarnated souls of children, etc.) yeah, it's pretty safe to say they probably can't produce offspring with the spoken races or each other.

Some of the spoken races probably can't interbreed with each other either, while others can. [Hrothgar x Hyur] probably would not work, but [Hrothgar x Miqo'te] and [Miqo'te x Hyur] might. Also worth noting that most if not all genetic hybrids (ligers, mules, etc.) are sterile in real life.

(People will still imagine Hyur (Humans) can interbreed with just about anything, as is their wont.)