In North America, the Plains Indians had flying dragons! And they did not look anything like a croc or an alligator (usually like Pterodactyls, but not always).
In fact, I was unaware that dragon myths were native to North America before the Europeans came over until I saw this show.
The scientist interviewed were trying too use dinosaur fossils and fossil foot prints as the reason for the myths (in North America and most locations... for example: dragon bones in China are fossils)... but it was amazing the similarities that all dragons have (different structures like scales)... that are not in fossils, but are guessed at today by scientist.
