Spot-fin Porcupinefish at Racha Yai     

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The spines on porcupinefish normally lie flat against its body and then point outwards for protection when the fish "inflates" under great duress. This particular spot-fin porcupinefish (Diodon hystrix) has backed out of a tight hole, breaking some of it's spines by rubbing them the wrong way.

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Nick Hope