User blog comment:Plexioth- xD/Monster Hunter 3 Ultimate/@comment-6649123-20130401010559/@comment-5946566-20130402133519

I'd say that all the brute wyvs have in common:

-Strong legs

-Hard head with someting lethal for their enemies

-A powerful tail (except Barroth)

-Very weak and useless arms (excepting Brachi, of course)

-Great strength.

By the way, something interesting is that they don't need to be related. Jho and Abiorugu are croco-dino-dragons, Duramboros is an herbivore, Barroth is some short of fantasy dinosaur, and Uragaan and Brachydios are "aliens".