Georgette Douwma / Yellow boxfish (Ostracion cubicus). North Sulawesi, Indonesia.

Georgette Douwma / Yellow boxfish (Ostracion cubicus). North Sulawesi, Indonesia.

David Fleetham / Trumpetfish (Aulostomus maculatus) swimming behind Yellow boxfish (Ostracion cubicus) as a blind to ambush prey. Yap, Micronesia.

David Fleetham / Spotted boxfish (Ostracion meleagris) swimming above sea floor. Hawaii.

Magnus Lundgren / Wild Wonders of China / Yellow boxfish (Ostracion cubicus) Sai Kung East Country Oark, Hong Kong, China.

Richard Robinson / Spotted Boxfish (Ostracion meleagris) Namuka-i-Lau Island lagoon, Lau Island Group, Fiji. August, 2017

Linda Pitkin / Yellow boxfish (Ostracion cubicus), male, on coral reef, Beacon Rock reef, Strait of Gubal, Gulf of Suez, Egypt, Red Sea.

Linda Pitkin / Yellow boxfish (Ostracion cubicus) Shark Reef to Jolande, Ras Mohammed National Park, Egypt, Red Sea.

Georgette Douwma / Spotted boxfish or trunkfish (Ostracion meleagris). Ambon, Indonesia.

Claudio Contreras / Spotted Boxfish (Ostracion meleagris), Socorro Island, Revillagigedo Archipelago Biosphere Reserve / Archipielago de Revillagigedo UNESCO Natural World Heritage Site (Socorro Islands), Pacific Ocean,...

Tony Wu / Yellow boxfish (Ostracion cubicus) juvenile, Ambon, Indonesia

Pascal Kobeh / Whitespotted boxfish (Ostracion meleagris) Panama, Pacific Ocean

Pascal Kobeh / Juvenile Yellow boxfish (Ostracion cubicus), Manado, Indonesia. Sulawesi Sea.

Alex Mustard / Male Yellow boxfish (Ostracion cubicus) displaying to female (out of shot) in late afternoon, their normal mating time. Ras Mohammed Marine Park, Sinai, Egypt. Red Sea.

Alex Mustard / Male Yellow boxfish (Ostracion cubicus) displaying, Ras Mohammed Marine Park, Sinai, Egypt. Red Sea.

Georgette Douwma / Yellow boxfish / Cube trunkfish (Ostracion cubicus) male. Egypt, Red Sea. Indo-Pacific. Found in reefs throughout the Pacific Ocean and Indian Ocean as well as the south eastern Atlantic Ocean.

Georgette Douwma / Yellow boxfish / Cube trunkfish (Ostracion cubicus) male. Egypt, Red Sea. Indo-Pacific. Found in reefs throughout the Pacific Ocean and Indian Ocean as well as the south eastern Atlantic Ocean.

Georgette Douwma / Yellow boxfish / Cube trunkfish (Ostracion cubicus) male. Egypt, Red Sea.

Claudio Contreras / Spotted boxfish (Ostracion meleagris), Cabo Pulmo National Park, Sea of Cortez (Gulf of California), Mexico, July

Sue Daly / Spotted Trunkfish / Boxfish (Ostracion meleagris) Lembeh Straits, Sulawesi, Indonesia

David Fleetham / Trumpetfish (Aulostomus maculatus) swimming behind a Yellow boxfish (Ostracion cubicus) trying to remain hidden to ambush prey, Yap, Micronesia, Pacific Ocean.

Doug Perrine / Whitley's boxfish (Ostracion whitleyi) male, portrait, Kona, Hawaii, Pacific Ocean.

Doug Perrine / Spotted boxfish (Ostracion meleagris) male, portrait, South Kona, Hawaii, Pacific Ocean.

Doug Perrine / Spotted boxfish (Ostracion meleagris) male, portrait, South Kona, Hawaii, Pacific Ocean.

Doug Perrine / Spotted boxfish (Ostracion meleagris) female, portrait, South Kona, Hawaii, Pacific Ocean.

Alex Mustard / Pair of Yellow boxfish (Ostracion cubicus) courtship display, male in the foreground chasing and kissing female, Sinai, Egypt, Red Sea.

David Fleetham / Male Spotted boxfish (Ostracion meleagris) portrait, Hawaii, Pacific Ocean.

Georgette Douwma / Yellow boxfish / Cube trunkfish (Ostracion cubicus) male and female, composite image on black background, Red Sea, Egypt.

Georgette Douwma / Female Yellow boxfish (Ostracion cubicus) with juvenile, composite image on black background, Komodo National Park, Indonesia, Indo-Pacific.

Georgette Douwma / Female Yellow boxfish (Ostracion cubicus) composite image on black background, Red Sea, Egypt.

Georgette Douwma / Yellow boxfish (Ostracion cubicus), male and female, composite image on black background, Red Sea, Egypt.

Georgette Douwma / Tropical reef fish composite image on black background, Blue triggerfish (Pseudobalistes fuscus), Orangestripe triggerfish (Balistapus undulatus), Clown triggerfish (Balistoides conspicillum), Arabian...

Georgette Douwma / Tropical reef fish composite image on black background, Devilfish (Inimicus didactylus), Star puffer (Arothron stellatus), Striped surgeonfish (Acanthurus lineatus), Seahorse (Hippocampus sp.), Leaffi...

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 / Blue tropical reef fish composite image on black background, Blue triggerfish (Pseudobalistes fuscus), Bicolour angelfish (Centropyge bicolor), Elongate surgeonfish (Acanthurus mata), Yellowtail tang...

Georgette Douwma / Yellow tropical reef fish composite image on black background, Falcula butterflyfish (Chaetodon falcula), Yellow boxfish (Ostracion cubicus), Golden butterflyfish (Chaetodon semilarvatus), Red Sea clo...

Joel Sartore / Photo Ark / Yellow boxfish (Ostracon cubicus) swimming into frame before leaving, Ripley's Aquarium, Toono, Ontario, Canada. Captive.

David Fleetham / Yellow boxfish (Ostracion cubicus) with ghost shrimp (Palaemonetes sp.) resting on head, Celebes Sea, Sipidan Island, Malaysia.

Pascal Kobeh / Yellow boxfish (Ostracion cubicus), Red Sea, Egypt.

David Fleetham / Yellow boxfish (Ostracion cubicus) adult, Yap, Micronesia.

Magnus Lundgren / Wild Wonders of China / Juvenile yellow boxfish (Ostracion cubicus) Green Island, Taiwan.

Georgette Douwma / Spotted boxfish or trunkfish (Ostracion meleagris). Tulamben, Bali, Indonesia.