Clearly they would grind their teeth together to create a spark and then spew a flammable chemical from special stores in their throat. The chemical would be ignited from the spark and come out its mouth as fire.
Although maybe I should check with JK Rowling to make sure I have that right …
I agree it has to be chemical. Lots of insects hunt or defend themselves by mixing chemicals inside their bodies to produce acid sprays so why not dragons too?
I don’t think it happens in the throat though, I think it happens in the fire pit which is a specialised organ next to the stomach that can withstand high temperatures. There is an ignition gland which drips highly explosive chemicals into the fire pit. When they react they cause a small explosion that results in a big roar of flames!
Comments
Ella commented on :
I’m not part of this zone but I saw this question and just have to say how much I love it!! :L
loven18 commented on :
Great question!