I got this idea when I was trying to brainstorm ideas for a science fiction. I want to write something where a scientist, using genetic engineering, creates a dragon. That got me to thinking, would such a creature be possible?
A dragon, as seen in many mythologies, is a large, flying reptile, capable of exhaling fire. I'm sure the flying reptile is feasible, since there were flying dinosaurs in the past, but I'm not familiar with any animal that can exhale flames. Would it be possible for an organism to safely shoot flames, and would there be a genetic code that would activate such abilities?