User blog comment:Lord Loss/Monster Hunter Theory... Blog/@comment-4775842-20120602160611/@comment-98.239.119.38-20120602225103

3 words: diverging evolutionary paths - barioth isn't the ancestor of the barioth sub, they are to related species, cousins if you will

so lets say tigrex is the ancestor, some tigrex were better at living in the tundra and eventually evolved into barioth, while some were better at surviving in the desert and would become baritoh sub

i only used tigrex as an example because it lives in both deserts and tundra, tigrex would also be a relative to barioth and sub as they are all psuedowyverns