Sergio Hanquet / Scrawled filefish (Aluterus scriptus) above sea floor, several fish in background. El Hierro, Canary Islands.

David Fleetham / Scrawled filefish (Aluterus scriptus), two in coral reef. Hawaii.

Magnus Lundgren / Wild Wonders of China / Marbled rockfish (Sebastiscus marmoratus) Sharp Island, Hong Kong, China.

Tony Wu / Threadsail filefish (Stephanolepis cirrhifer) at night. Toyama Prefecture, Honshu, Japan. March.

Tony Wu / Threadsail filefish (Stephanolepis cirrhifer) two latched on to rope twhile resting, Toyama Prefecture, Honshu, Japan. March.

Linda Pitkin / Whitespotted filefish (Cantherhines macrocerus) on coral reef Bonaire, Leeward Antilles, Caribbean.

Georgette Douwma / Smallspotted leatherjacket (Pseudomonacanthus macrurus) Lembeh, Sulawesi, Indonesia.

Georgette Douwma / Whitespotted filefish (Cantherhines macrocerus) feeding on sponge with territorial Dusky damselfish (Stegastes adustus) trying to chase it away. Bonaire, Netherlands Antilles, Caribbean, Atlantic Oc...

Pascal Kobeh / American whitespotted filefish (Cantherhines macrocerus) in orange phase, San Salvador Island / Colombus Island, Bahamas. Caribbean.

Pascal Kobeh / Scribbled filefish (Aluterus scriptus) close up of patterns, coast of Dhofar and Hallaniyat islands, Oman. Arabian Sea.

Solvin Zankl / Leatherjacket (Parika / Meuschenia scaber) portrait, Poor Knights Islands, Marine Reserve, New Zealand, South Pacific Ocean, July.

Pete Oxford / White spotted filefish, orange phase (Cantherhines macrocerus) head profile, Bonaire, Netherlands Antilles, Caribbean

Pete Oxford / White spotted Filefish, orange phase (Cantherhines macrocerus) Bonaire, Netherlands Antilles, Caribbean

Michele Westmorland / Whitespotted Filefish, orange phase (Cantherhines macroceros) protecting nest. Bookends dive site. Speyside area of Tobago, Caribbean.

Fred Bavendam / Pigmy Leatherjacket (Brachaluteres jacksonianus) clinging to an ascidian with its teeth at night, Australia

Juergen Freund / White spotted filefish (Cantherhines macroceros / dumerilii) Indo-pacific

Chris Newbert / Filefish (Pseudomonacanthus sp) juvenile 30 feet deep, Papua New Guinea

Chris Newbert / Mimic Filefish (Paraluteres prionurus) 50 feet deep, Papua New Guinea

Chris Newbert / Filefish (Pseudomonacanthus sp) 100 feet deep, Papua New Guinea

Chris Newbert / Filefish (Pseudomonacanthus sp) pair, 100 feet deep, Papua New Guinea

Chris Newbert / Scrawled Filefish (Alutera scriptus) profile off of the Kona Coast, Hawaii

Flip Nicklin / Scrawled Filefish (Aluterus scriptus) portrait off of Cocos Island, Costa Rica

Fred Bavendam / Orange-spotted Filefish (Cantherhines pullus) sleeping at night among Sponges and Orange Cup Corals (Tubastraea coccinea), Bonaire, Caribbean

Fred Bavendam / Orange-spotted Filefish (Cantherhines pullus) sleeping at night among Sponges and Orange Cup Corals (Tubastraea coccinea), Bonaire, Caribbean

Juergen Freund / White spotted filefish {Cantherhines mcaroceros} Caribbean sea

Jeff Rotman / White spotted filefish {Cantherhines macroceros} Bahamas, Caribbean

Hiroya Minakuchi / Atlantic Spotted Dolphin (Stenella frontalis) pair, Bahamas, Caribbean Sea

Angelo Giampiccolo / White spotted filefish (cantherhines macroceros) amongst corals, Belize Cayes, Caribbean.

Angelo Giampiccolo / Whitespotted filefish (Cantherhines macroceros) amongst corals, Belize Cayes, Caribbean.

Chris Newbert / Beaked Leatherjacket (Oxymonacanthus longirostris) uses long pointed snout to extract Coral polyps, 30 feet deep, Solomon Islands

David Fleetham / Close up of Scrawled filefish (Aluterus scriptus) head as it swims through reef, Hawaii, Pacific Ocean.

Alex Mustard / Harlequin leatherjacket (Oxymonacanthus longirostris) portrait, Similan Islands, Thailand, Andaman Sea.

Georgette Douwma / RF - Tropical reef fish, composite image on black background, Radial filefish (Acreichthys radiatus), Devilfish (Inimicus didactylus), Black-spotted porcupinefish (Arothron hystrix), Puffer filefish...

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

Georgette Douwma / Yellow tropical reef fish composite image on black background, Sailfin tang (Zebrasoma veliferum) juvenile, Pajama cardinalfish (Sphaeramia nematoptera), Three-spot angelfish (Apolemichthys trimaculat...

David Fleetham / Longnose filefish (Oxymonacanthus longirostris) swimming amongst coral, Fiji, Pacific Ocean.