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| Sarcastic fringehead |
The Sarcastic fringehead, Neoclinus blanchardi, 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.
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