There is a type of fish called the saber-toothed blenny that looks like a cleaner fish. They are really tricky and they know very well that they can make the big fish think they are the cleaner type. They swim near the big fish and when the big fish waits, still hoping to enjoy a pleasurable clean, the saber-tooth blenny swims close and quickly takes a quick bite of the big fish, then darts away quickly. This is a good example of a parasitic relationship.
Portrait of a yellow-green blenny hiding
in the groove of a green brain coral;
Photo © Chuck Savall; ICRIN
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