[AM2000]

Do most cultures depict these dragons as dangerous? For example, the "fire-breathing" dragon that most of us in the West have heard/read about - is that what other cultures believe as well? Just curious.

[keithtoo]

I've actually heard of some ancient dinousars and Pterosaurs which have unexplained cavities in their skull which literally could have held some chemical that could have been expelled thru their nostrils or mouth that could have had a "smoky" effect.

Then again, anyone exhaling in a cold-enough environment, gives off breath as 'steam'. Of course, most cold-blooded reptiles dont last long in cold climates, but some do.

[Chewbacca]

One theory about the fire breathing dragons (aka dinosaur) was it blew a hot chemical mix from its nostrils like a bombadier beetle.
Sounds like a good theory to me. Didn't necessarily breath fire, but more like an acid breath that burned the skin on contact.