User blog comment:Kogath/Monster Hunter Frontier G6 Discussion/@comment-6050823-20141027033507/@comment-6050823-20141027221922

@Dracosaurian Funny you mention that! According to that same link, Barenatorosu supposedly has both Gobul's same skeleton and some of its movements. Its also mentioned that Hyujikiki evolved those needles all over its body to protect itself and to survive attacks from Barenatorosu.