So far after reading some of the more recent posts, nothing has really been presented that even remotely has any merit. Yes snakes did at one point in their earlier evolutionary sequence had feet, but they were never present in China or Japan. Japan because its an island, and all history from the first recording it was an island. China's landscape and temperature isnt close enough in hot climate to support anacondas living conditions.

For every piece of fact that there is, there is hundreds of things that show it is pure false-hood. Also, helium is not an element that can be sustained for a very long time, and even then, there is not enough helium in the air to constitute flamibility to a degree that would be theorized for a dragon to breathe fire.

Basically, bones/genetic material/hardproof/underpants/???/profit, or it didnt happen.