Porcupinefish  ::: << Prev ::: Thumbs ::: Next >> :::  
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1 of 4. The Porcupinefish showing its unusual defensive strategy by distending itself with water to discourage an attack from a predator (or curious diver). The other visible defense mechanism shown in this photo are the prickly spines. The Porcupinefish and Pufferfishes accumulate a poison called tetrodotoxin that might or might not be deadly to other fish, but is deadly to humans. Considered a delicacy in Japan, only licensed chefs are authorized to prepare and serve this species of fish.