Talk:Monster Hunter Evolution - My Theories/@comment-4212769-20120830224645/@comment-5043481-20120909112222

There is no way at all that Yama could have evolved from jellyfish. Jellyfish have no brains, eyes, or even mouths. Squid seems OK though.

Although my theory is that Yama evolved from some form of flying elder dragon that had large quantities of hydrogen producing bacteria in its gut, which helped with bouyency. This gradually evoved to be Yamas main form of flight, which would mean that Yama's gas bladder is actually a very large poertion of its gut. This is backed up because yama has teeth rather than a beak, like with squid.