Sarcastic fringehead (Neoclinus blanchardi)
The Sarcastic fringehead is a ferocious fish which has a large mouth and aggressive territorial behaviour from 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. They are found in the Pacific, off the coast of North America, from San Francisco, California, to central Baja California. Fringeheads are ambush predators, jumping out from their shelter to surprise prey swimming or moving by.