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In the modern period, the European dragon is typically depicted as a huge, fire-breathing, scaly, horned, lizard-like creature; the creature also has leathery, bat-like wings, four legs, and a long, muscular prehensile tail. Is there a realistic way that it could evolve?
Using earth or near earth biology how close could I get to the classic European Dragon? Is there a reason that a European Dragon couldn't evolve?