David Fleetham / Guineafowl pufferfish (Arothron meleagris) Yap, Micronesia.

Constantinos Petrinos / Spotted puffer (Arothron meleagris) juvenile defecating, Lembeh Strait, North Sulawesi, Indonesia.

Constantinos Petrinos / Spotted puffer (Arothron meleagris) juvenile. Lembeh Strait, North Sulawesi, Indonesia.

Constantinos Petrinos / Spotted puffer (Arothron meleagris) juvenile. Lembeh Strait, North Sulawesi, Indonesia.

Pascal Kobeh / Starry pufferfish (Arothron meleagris) Maldives, Indian Ocean.

Franco Banfi / Guineafowl puffer (Arothron meleagris) Cocos Island National Park, Costa Rica, East Pacific Ocean

Franco Banfi / Guineafowl puffer (Arothron meleagris) Cocos Island, National Park, Costa Rica, East Pacific Ocean

Henley Spiers / Starry-bodied guinea fowl pufferfish (Arothron meleagris) swimming among a huge shoal of Jackfish (Caranx sexfasciatus) Cabo Pulmo, Baja California Sur, Mexico, Pacific Ocean.

Lucas Bustamante / Guineafowl puffer / Golden puffer (Arothron meleagris) swimming next to reef, Darwin Island, Galapagos National Park, Pacific Ocean.

Alex Mustard / Guineafowl pufferfish (Arothron meleagris) portrait, Revillagigedo Islands, Mexico, Pacific Ocean.

David Fleetham / An inflated Guineafowl pufferfish (Arothron meleagris) in front of sea fans (Gorgonia sp.) on a reef wall, Fiji, Pacific Ocean.

Georgette Douwma / RF - Tropical reef fish, composite image on black background, Radial filefish (Acreichthys radiatus), Devilfish (Inimicus didactylus), Black-spotted porcupinefish (Arothron hystrix), Puffer filefish...