User blog comment:BannedLagiacrus/Monster Appreciation Week: Uragaan (4th Gen)/@comment-27465049-20161021090024

"It is difficult to determine a Uragaan's sex from appearance alone. However, during breeding seasons, the males will dress itself with many rocks to impress the females. Diet during this season consists of high quality minerals and valuable jewels to obtain a hard, glossy, golden shell and jewel covered body. The males compete for the brightest display. "

So Crystalbeard is basically a breeding-season Uragaan? Pretty cool either way, didn't know they were herbivores, such a 180 rotation in diet.