User blog comment:Lord Loss/Monster Hunter Theory... Blog/@comment-4003956-20120423163831/@comment-4003956-20120423165515

Monsters that shouldnt be able to fly or swim through sand without lower gravity.. I don't feel that to be an entirely valid argument. Who is to say that under their hide rests pure, raw power, or that they haven't evolved in ways to pull off such feats to aid survival?

Take Cephalos/Cephadrome for example. They could use super sonic waves to shift the sand infront of them loose, making "swimming" through it much, much easier. This would also explain why a sonic bomb yanks them out of the sand and causes them to flop in pain. The sonic waves dissrupt their own sonic waves, causing the sand infront of them to either not shift loose, or shift tighter thus making them run head long into a thick wall. While they are emitting the sound, their ears or sensors are likely to be much more sensitive, as to pick up their own sonic waves and use their sounds to also keep themselves from running into solid rock. This higher sensitivity would turn the sound of a sonic bomb (which doesn't effect them under normal conditions) into an ear shattering erruption.

(again, sorry for such large walls of text)