Talk:Monster Hunter Evolution - My Theories/@comment-1685631-20120831034057/@comment-4212769-20120831235318

That these theories are full of wholes is no wonder as we don't know how evolution exactly goes in our world either. There are so many missing links that we don't really have the security to say it's like this and that and will go on like this and that.

You're right with the fur. It's not a characteristic that makes an animal to a mammal but it's mostly found with mammals. There aren't many animals that have fur (if you can call it fur) and are no mammals. What comes to mind is the yeti crab though I don't think it's "real" fur. The first mammal-like Pseudowyverns could be the ancestor of Pelagi with evolving the fur making it unnecessary to keep scales to protect them. Nargacuga could be one of the descendents of them keeping both, mammal-like and reptilian-like elements.

Only because that there is only one Fanged Wyvern species doesn't necessarily mean it's a "young" species. It can also be just the only Fanged Wyvern in the region and in other regions there are many more of them. It could be one of the last ones of this class and the rest went extinct, too. So he'd belong to an older class.