Georgette Douwma / Thornback cowfish (Lactoria fornasini). Lembeh Strait, North Sulawesi, Indonesia.

David Fleetham / Smooth trunkfish (Lactophrys triqueter), portrait. Bonaire, Dutch Caribbean.

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

Pascal Kobeh / Close-up of Horn-nosed / Largenose boxfish (Ostracion rhinorhynchos) with a striped remora (Echeneis naucrates) on its head at night, Sulu Sea, Philippines

Pascal Kobeh / Close-up of Horn-nosed / Largenose boxfish (Ostracion rhinorhynchos) with a striped remora (Echeneis naucrates) on its head at night, Sulu Sea, Philippines

Pascal Kobeh / Close-up of Horn-nosed / Largenose boxfish (Ostracion rhinorhynchos) with a striped remora (Echeneis naucrates) on its head at night, Sulu Sea, Philippines

Ingo Arndt / Yellow Boxfish (Ostracion cubicus), native to Asia

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.