The Sarcastic Fringehead, Neoclinus Blanchardi, Is A Small But Ferocious Fish Which Has A Large Mouth And Aggressive Territorial Behavior, For Which It Has Been Given Its Common Name
When two fringeheads have a territorial battle, they wrestle by pressing their distended mouths against each other, as if they were kissing. This allows them to determine which is the larger fish, which establishes dominance