Richard Robinson / Blackspotted Puffer (Arothon nigropunctatus) at South Minerva Reef / Teleki Tonga, a disputed territory in the South Pacific between Tonga and Fiji.

Pete Oxford / Blackspotted puffer (Arothron nigropunctatus) amongst coral, Rainbow Reef, Fiji, South Pacific.

Pascal Kobeh / Blackspotted pufferfish (Arothron nigropunctatus) hidden in a sponge, Madagascar. Indian Ocean.

Pascal Kobeh / Blackspotted pufferfish (Arothron nigropunctatus) on a Leather coral, Mayotte. Indian Ocean.

David Fleetham / Blackspotted puffer (Arothron nigropunctatus) getting its gills meticulously inspected by Common cleaner wrasse (Labroides dimidiatus), Malaysia, Pacific Ocean.

David Fleetham / Blackspotted puffer (Arothron nigropunctatus) swimming through coral reef, Philippines, South China Sea.

Georgette Douwma / Tropical reef fish composite image on black background, Boxfish (Ostracion meleagris), Squarespot anthias (Pseudanthias pleurotaenia), Blackspotted pufferfish (Arothron nigropunctatus), Rhinopias scor...

Georgette Douwma / Mixed Pufferfish, adults and juveniles, composite image on black background, 1. Star puffer (Arothron stellatus); 2. Black spotted porcupinefish (Arothron hystrix); 3. Star puffer (Arothron stellatu...

Georgette Douwma / Mixed Pufferfish, adult and juvenile, composite image on black background, 1. Black spotted porcupinefish (Arothron hystrix); 2. Blackspotted puffer (Arothron nigropunctatus); 3, 4. Star puffer (Aroth...

David Fleetham / Blackspotted puffer (Arothron nigropunctatus) curled up on the reef for the night, with a transparent cleaner shrimp (Urocaridella antonbrunii) inspecting its tail, Philippines.

David Fleetham / Blackspotted puffer / dog-faced puffer (Arothron nigropunctatus), Philippines, Southeast Asia.

Magnus Lundgren / Rare and previously unseen behavior with an adult blackspotted puffer (Arothron nigropunctatus) swimming around with a dead younger fish of the same species in its beak-like mouth. Nightdive close to...