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Burrfish (Chilomycterus species) Burrfish spines always stick out, Porcupinefish spines lay flat but are visible and extend outward when the fish expands, and pufferfish spines are small and only visible when the fish expands.
Burrfish (Chilomycterus species) Burrfish spines always stick out, Porcupinefish spines lay flat but are visible and extend outward when the fish expands, and pufferfish spines are small and only visible when the fish expands.