User blog comment:Kogath/Monster Hunter 4 Ultimate for the Nintendo 3DS/@comment-6050823-20150416223613/@comment-6050823-20150417031818

@Chimera-gui

Monoblos and Diablos maybe herbivores but they are extremely aggressive, even over tiny things. The same applies for both Duramboros and its Subspecies since both are known to kill harmless herbivores. Rust Duramboros' colors isn't just changed due to the environment it lives in, Rust Duramboros' colors are also changed from the blood of all creatures that either attempted to kill it, attacked it, or just plain ol made it mad.