Ignidraco

The Ignidraco was a genus species of prehistoric proto-dragons.

Ecology
Scholars from Candlekeep theorized that ignidracos had an evolved digestive tract that enable them to regurgitate intestinal gas and ignite it with an enzymatic, hypergolic reaction in the back of their throat, making them capable of breathe out blasts of fire.

History
Scholars believed that ignidracos were an evolved strain of the eodraco species. It was theorized that certain species of ignidracos developed the first stages of self-awareness and real intelligence, not just the improved animal cunning shown by earlier species of eodracos. A few scholars believed ignidracos began to develop the earliest manifestations of the draconic language, although there was not enough evidence to prove anything. It was also believed that, as ignidracos dependent mostly on their intelligence for survival, the species began to develop longer life spans.

Detractors of the proto-dragon theory believed that the fact that some species of dragons were capable of breathe out kinds of elemental energy other than fire (such as the blue dragons ability to breathe out lightning) made the theory of the evolved digestive tract illogical, and that the counter-theory that explained the white dragons ability to breathe out frost as some-sort of chemical reaction capable of absorbing heat was just rubbish.