@Ethan Elliot I know and that is exactly my point. Dragons and Wyvern are reptilians by definition, just like a Tiger is feline by definition. It is still a world of differences between like you said a Tiger and a Lion as is there between a normal Wyvern and a real Dragon. Also to furhter explain my point, just like Lions, Wyvern are mostly depicted as Pack animals in fantasy, while Dragons like Tigers are mostly depicted as solotary. So I guess, Thanks for proving my point. :P