User blog comment:Kogath/Monster Hunter X Discussion/@comment-25706585-20150714000013/@comment-7584137-20150714074855

With that small mouth, Deviljho looks like it would fare poorly against Dinovaldo... but of course, the big guy has a good defense, a powerful dragon breath and a lot of strenght, so it´s hardly one-sided. And Deviljho has quite of a good bite force. And on one hand, Dinovaldo has all those lovely abilities like it´s powerful tail. Since the two seem to occupy the same place on the food chain, it would make sense for them to be rivals. But as Strikerhunter said, any monster can be Deviljho´s rival considering how it behaves.

Also, I LOVE the rivarly between monsters. It makes sense and makes the monsters seem like really living creatures.