Alex Mustard / Spotted porcupinefish (Diodon hystrix) swimming in open water above a coral reef, West Bay, Grand Cayman, Cayman Islands, British West Indies, Caribbean Sea.
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Pete Oxford / Porcupine fish (Diodon hystrix) Bonaire, Netherlands Antilles, Caribbean
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Tim Laman / Bluestreak cleaner wrasse (Labroides dimidiatus) cleaning a Spotted Porcupinefish (Diodon hystrix) on a coral reef in Bali, Indonesia.
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Jeff Rotman / Porcupinefish (Diodon hystrix) close-up of spines. Egypt, Red Sea.
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GEORGETTE DOUWMA / Black-spotted porcupinefish {Arothron hystrix} Lembeh Strait, North Sulawesi, Indonesia.
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GEORGETTE DOUWMA / Black-spotted porcupinefish {Arothron hystrix} Lembeh Strait, North Sulawesi, Indonesia.
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Doug Perrine / Diver with inflated Porcupine fish {Diodon hystrix} Florida, USA.