User blog comment:Mckrongs/Monster Hunter 4 for the Nintendo 3DS/@comment-21378804-20131003110715/@comment-5460283-20131003135142

@ Jade: But Khezu don't mate (usually) they usually just make copies of themselves.

@ Rex: It does make sense the new world rath's have similar subspecies. Ever hear of convergent evoution? And the difference between the new and old rath's body structure and stance is proof enough they are separate species.