The sarcastic fringehead (Neoclinus blanchardi) is a footlong fish that lives off the Pacific coast of North America. When unthreatened, the fringehead’s visage is fairly unremarkable. But if a marine predator (or stray human hand) attempts to dislodge a fringehead from its crevasse, the fish will race into action, brandishing its frightening Predator-like mouth at the interloper.

And things get even stranger when two sarcastic fringeheads get embroiled in a turf war. How strange? Two words: “mouth wrestling.” Are you brave enough to behold the angriest make-out party in the animal kingdom?

via // [video source]