Dragons could be real. I personally believe they are.

Dragons have appeared in mythology all around the world. Countries that could never have had contact at the time have descriptions and lore and art of the same creatures. How could it be that all around the world, without communication, we managed to invent the same creature?

It's also very possible that there are dragon bones berried somewhere beneath us. There are still dinosaurs to discover, who's to say someone won't unearth some dragon bones some day?

Also, even without all that, I'm still on the believing side. I believe it was a Japanese fisherman who accidentally caught something quite similar to a dragon? It was pink and long and had whiskers and looked an awful lot like an oriental dragon to me.

http://youtu.be/oRqUAMrS1X4

There's also this cool mockumentry about dragons, and it does bring up some good points.

http://youtu.be/8FIDeOOL52Q