Distended Porcupinefish ::: << Prev ::: Thumbs ::: Next >> :::
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05 of 10. Besides a defensive system of using water to distend themselves, Porcupinefish also have prickly spines and secrete a substance on their skin that is unpalatable to predators. Porcupinefish and Pufferfishes have a toxin in their body that is deadly to humans. Considered a delicacy in Japan, only specially licensed chefs can prepare them for the table.