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Facts about Triggerfish

  Triggerfish (Balistidae) Triggerfish are characterised by latterally compressed, rugby ball shape, leathery skin, and small mouth with powerful crushing jaws. Their common name is derived from the peculiar mechanism by which the first dorsal spine can be locked into an erect position by the second dorsal spine. If the pressure is exerted on the trigger like second spine, the first spine can be unlocked and depressed. This device is used to good advantage at night when the fish wedge into a coral crevice and locks itself in. Read more...
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