User blog comment:Lord Loss/Monster Hunter Theory... Blog/@comment-3062343-20120106094030/@comment-1758220-20120116231823

I feel like, given the Jhen Mohran's size, it could live for a very long time. Over that time, deposits of Carbalite ore could appear on it, resulting in what we see in the Jhen sub. As for Ceadeus, I can't see how a monster who's horns are genetically designed to grow over its eyes (rendering it blind) could be at all evolutionarily successful. I'm gonna guess that the Ceadeus sub is just an older, matured Ceadeus.