Alex Mustard / Colourful reef scene with Coral grouper (Cephalopholis miniata), map puffer (Arothron mappa) and Panda butterflyfish (Chaetodon adiergastos). Tank Reef, Fiabacet Islands, Misool, Raja Ampat, Indonesia...

Georgette Douwma / Guineafowl puffer fish (Arothron meleagris) also known as the Golden puffer or Spotted puffer because is has three colour phases which differ dramatically. Maldives, Indian Ocean

Alex Mustard / Sharpnose puffer (Canthigaster rostrata) portrait with the eyes standing out against a dark background, East End, Grand Cayman, Cayman Island, British West Indies, Caribbean Sea.

Flip Nicklin / Long-spine Porcupinefish (Diodon holocanthus) in defense posture, North America

Fred Bavendam / Guineafowl Pufferfish (Arothron meleagris) in its golden color phase puffed up off of Tower Island, Galapagos Islands, Ecuador

Georgette Douwma / Map pufferfish {Arothron mappa} feeding Andaman sea, Thailand

Georgette Douwma / Map pufferfish {Arothron mappa} feeding Andaman sea, Thailand

Georgette Douwma / Black spotted pufferfish {Arothron nigropunctatus} Andaman sea, Thailand

Jeff Rotman / Guineafowl pufferfish inflated at night {Arothron meleagris} Galapagos, Pacific

Pascal Kobeh / Common lionfish (Pterois volitans or miles) feeding, Bennett's sharpnose puffer (Canthigaster bennetti) in mouth. Flores Sea, Indonesia.

Tony Wu / Brown-lined puffer fish (Canthigaster rivulata) pair spawning. Shizuoka Prefecture, Honshu, Japan. June.

Magnus Lundgren / Wild Wonders of China / Valentin's toby (Canthigaster valentini), Xiaoliuqiu Island, Taiwan