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

Pete Oxford / Guineafowl Pufferfish (Arothron meleagris), golden phase, Wolf Island, Galapagos Islands, Ecuador

Norbert Wu / Blue-streaked Cleaner Wrasse (Labroides dimidiatus) cleaning Guineafowl Pufferfish (Arothron meleagris), Raja Ampat Islands, Indonesia

Chris Newbert / Guineafowl Pufferfish (Arothron meleagris) portrait, Kona, Hawaii

Norbert Wu / Guineafowl Pufferfish (Arothron meleagris) inflated in defense display, Hawaii

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

Roberto Rinaldi / Eye of Brisley puffer / white-spotted puffer (Arothron hispidus), Layang Layang, Borneo, Malaysia.