User blog comment:Lord Loss/Monster Hunter Theory... Blog/@comment-5020152-20131018191930/@comment-17735225-20131019140412

But the problem is, in real life, most living beings don't normally come near the volcano at any time if it's glowing like what Dire always do. Except certain bacteria that survive extreme heat.

I believe he is more like 'ore species' of elder dragons, like Gravios to the flying wyverns and Uragaan to the brute wyverns. He probably feed on rocks and ores to process them in his body. His volcanic body works like a factory. The 'meteors' are wastes from the process, somehow along the line with Gravios and Uragaan excreting gases from ore processing.

Or if he is by any chance to eat other living being, I think he could have just move somewhere and then completely boil the entire portion of water around him, killing everything and allow easy feast. Think of it like boiling a pond to get all the fish. The disguise would work to prevent any equally powerful species to mess with him, or just a little more protection while hibernating.