@TWG_Fan_2014
I would rather believe what Special43 and other members mentioned in this thread as they sound way plausible than your so-called 'territorial' dispute theory here, which sounds pretty absurd to me.
I read your line: ' Given Godzilla's size, shape, and abilties, the chances that a single flying Muto type creature could prey on him is highly unlikely. You can argue that smaller animals prey on larger ones, as it's a valid statement, but in Godzilla's case I can't see that happening. '
May I ask why dun you see that happening? Or are you responding to Special43's theory with the answer above simply because as a Godzilla-fan you cannot accept the fact that Godzilla could potentially be defeated by something less awesome to you than Godzilla?
Look around nature, you can see that they are many small predators capable of taking out larger prey. Great whites prey on whales which are larger than them. Wasps prey on Tarantulas even when they are smaller sized and embed their eggs in the spider.
To me your 'territorial dispute' theory is absurd because you speak as if the ocean floor and Earth in all their vastness, cannot contain Godzilla and the Mutos as if they have to fight for some petty spot in the ocean like they are kids. And if you have yet to realize, the toy description states loud and clear: Since then, the giant creature has been living in the deep ocean - until a threat to his survival from an ancient foe forces him to reappear.'
Hello, are you in denial here? For Christ's sake.