If you mean natives of the realms, then most of them
Souls who are successfully rehabilitated are either sent to another realm to serve for eternity or may choose to become a Venthyr and continue the cycle as an instrument of repentance.
They are “created” from souls, and in some realms are free to pick their form. Or so it seems.
This is a difficult one, because they, for example larions, do have cubs and seem to act like usual animals, however, the caveat seems to be, that just like stewards, they are