I still want to discuss fire breathing penguins!
Well, as we know, penguins eat a diet of fish. Fish live in a sea that's often been dumped in. It's not unlikely that a penguin could eat enough chemically tainted fish that a concoction of flammable liquids could form in their bellies and be ignited with a brief bought of the induced heartburn, causing a breath of flame. BULLSHIT DETECTOR OVERLOAD
I mean... yeah, that would be cool. I'm sure Jeff Bridge's character from Surf's Up would look cool belching fire from a flaming sambuka