User blog comment:- MHCaboose -/Monster Hunter Frontier Z Discussion/@comment-6050823-20160921121445/@comment-26421638-20160921214928

^ Zenith evolved to take advantage from nature threats, while Deviants to take advantage over hunters. It's a small difference...

Sure, some Deviants have one or more developed parts, but only in a few cases will use them as weapons