User blog comment:WolfQueen/Discussion of the Week: Related Species/@comment-12331904-20150209044921

I'd place them slightly above subspecies. They're roughly the same but require some effort with new models and such.

Jhen/Dah'ren's probably my favorite pair. Though the Yians are nice too with Kut-Ku being a joke and Garuga being fucking terrifying in comparison. (still kind of a punk, though)

I'm generally not into the majority of frontier monsters.

Maybe something related to the new amphibians? Like a sleeker relative to the Zamtrios, less great white like, more like a Mako or thresher shark. It'd probably forgo the armor and the fatmode for general speed and more acrobatic maneuvers.