User blog comment:Kogath/Monster Hunter: World Discussion/@comment-5020152-20180612185735/@comment-8985329-20180614120020

Except Barioth doesn't share the walking animation with Narga and Tigrex and you can actually see it's always quadruped unlike those, besides, it doesn't have a single animation shared with Rathalos. Get your facts right please.

Also if you're so nitpicky to not believe in Frontier (which is stupid, why would they change the animation instead of just copypasting it?). Here you have a vid of MH3U showing it doesn't have any biped animations: https://youtu.be/9JFB0N4qZr8?t=138