Unfortunately, no documented animal has the ability to breathe fire, but there is one group of animals that is widely accepted as those that come closest to doing so: bombardier beetles.

What animal can breathe fire in real life?

Move over, Komodo and Bearded dragons: the Bombardier Beetle is the closest we've found to a fire-breather. The closest equivalent is probably the Bombardier beetle (Brachinus species). These store hydroquinone and hydrogen peroxide in separate chambers in their abdomens.

Does fire-breathing dragon exist?

It's true no fire-breathing dragons have ever been discovered, yet flying lizard-like creatures exist in the fossil record. Some may be found in the wild today. Take a look at the science of winged flight and possible mechanisms by which a dragon might even breathe fire.