User blog comment:Kogath/Monster Hunter X Discussion/@comment-5020152-20150917225630/@comment-4640052-20150924210325

@Ravenxeo They are wyverns, and many wyverns do have fur or/and feathers. I still think the Dromes should NOT have feather because they are meant to look like skinny lizard dinos who strike hard with their sharp claws but die quickly if you hit them hard.

@BannedLagiacrus The wyverns and similars could be considered Archosaurs, mostly similar to dinosaurs and birds, since some of them have feathers and a body structure very similar to them. Either they are an alternative timeline for the species from Earth, and became what they are by evolving in different paths, or, they were engeneered to have these characteristics by a technological ancestral civilisation. I like this second one best. The game always hints that there is ancient, forgotten technology (relic weapons found encased in rocks, ancient robot armors), ruins everywhere, strangely useful biological resources, as if the world was build to be that way. And besides that, humans seems to be an alien species to this world.