User blog comment:Kogath/Monster Hunter Frontier G7 Discussion/@comment-6050823-20150331101039/@comment-4009941-20150331152011

He looks to still be all stone, just plants growing on him. This must be like how Diablos and Gravios are related but split one living in Desert and one in Volcano. But now we seen a Volcanic Diablos and now a Desert Gravios. And it uses water?, it looks like it vents the water out it's back.

Though I get the feeling it's more of a amphibious Gravios than a open desert Gravios by all that stuff growing on it and water attacks.