User blog comment:Lord Loss/Monster Hunter Theory... Blog/@comment-4639789-20120308191341/@comment-4555457-20120310054226

moga woods has ores - it has iron ore, which i believe is what gave 'steel uragaan' its metallic constitution, so it has an available source of food

and like all animals they adapt to their surroundings, i mean deviljho alone is proof enough that moga island can be reached from all other areas in Tri (idk about mountain stream though, does jho show up there?)