Juergen Freund / Detail of eye of Parrotfish (Scarus rivulatus) Komodo NP, Indonesia

Jeff Rotman / Bullethead Parrotfish (Scarus sordidus) portrait at night. Egypt, Red Sea.

Juergen Freund / Close up of eye of Princess parrotfish {Scarus taeniopterus} Caribbean

Juergen Freund / Close up of fin of Parrotfish {Scarus sp} Indo-pacific

Chris Newbert / Parrotfish (Scarus sp) close-up of eye, Red Sea, Egypt

Chris Newbert / Blue Parrotfish (Scarus coeruleus) eye, Belize

Fred Bavendam / Blue-barred Parrotfish (Scarus ghobban) male sleeping on the reef at night, Andaman Sea, Thailand

Fred Bavendam / Steephead Parrotfish (Scarus microrhinos) portrait, Manado, North Sulawesi, Indonesia

Georgette Douwma / Steep headed parrotfish (Scarus gibbus), feeding male followed by a Chequerboard wrasse (Halichoeres hortulanus). Egypt, Red Sea.

Georgette Douwma / Steep headed parrotfish (Scarus gibbus), feeding male followed by a Chequerboard wrasse (Halichoeres hortulanus). Egypt, Red Sea.

Georgette Douwma / Rusty parrotfish (Scarus ferrugeneus). Egypt, Red Sea.

Georgette Douwma / Greenthroat or Singapore parrotfish (Scarus prasiognathus), large school of terminal males grazing on algae covered coral rock. Andaman Sea, Thailand.

Georgette Douwma / Greenthroat or Singapore parrotfish (Scarus prasiognathus), large school of terminal males grazing on algae covered coral rock. Andaman Sea, Thailand.

Georgette Douwma / Greenthroat or Singapore parrotfish (Scarus prasiognathus), large school of terminal males swimming. Andaman Sea, Thailand.

Georgette Douwma / Greenthroat or Singapore parrotfish (Scarus prasiognathus), large school of terminal males with some females swimming over coral reef. Andaman Sea, Thailand.

Georgette Douwma / Greenthroat or Singapore parrotfish (Scarus prasiognathus), large school of terminal males grazing on algae covered coral rock. Andaman Sea, Thailand.

Georgette Douwma / Greenthroat or Singapore parrotfish (Scarus prasiognathus) large school of females with some terminal males and Powderblue surgeonfish (Acanthurus leucosternon) swimming over coral reef. Andaman Sea,...

Georgette Douwma / Greenthroat or Singapore parrotfish (Scarus prasiognathus), female with terminal males swimming over boulders in shallow water. Andaman Sea, Thailand.

Georgette Douwma / Greenthroat or Singapore parrotfish (Scarus prasiognathus), large school of terminal males and some females swimming over large boulders in shallow water. Andaman Sea, Thailand.

Georgette Douwma / Greenthroat or Singapore parrotfish (Scarus prasiognathus), terminal males grazing on algae covered coral boulders. Andaman Sea, Thailand.

Georgette Douwma / Greenthroat or Singapore parrotfish (Scarus prasiognathus) terminal males grazing on algae covered coral boulder. Andaman Sea, Thailand.

Georgette Douwma / Greenthroat or Singapore parrotfish (Scarus prasiognathus), large school of females grazing on algae covered coral boulder, Andaman Sea, Thailand.

Georgette Douwma / Greenthroat or Singapore parrotfish (Scarus prasiognathus) large school of females with some terminal males swimming over coral reef, Andaman Sea, Thailand.

Georgette Douwma / Greenthroat or Singapore parrotfish (Scarus prasiognathus) females with some terminal males grazing on algae covered coral boulders, Andaman Sea, Thailand.

Georgette Douwma / Greenthroat or Singapore parrotfish (Scarus prasiognathus), terminal males grazing on algae covered coral, Andaman Sea, Thailand

Georgette Douwma / Greenthroat or Singapore parrotfish (Scarus prasiognathus), large school of terminal males grazing on algae covered coral boulders, Andaman Sea, Thailand.

Georgette Douwma / Greenthroat or Singapore parrotfish (Scarus prasiognathus), terminal males with females and Powderblue surgeonfish (Acanthurus leucosternon) in background, Andaman Sea, Thailand.

Georgette Douwma / Greenthroat or Singapore parrotfish (Scarus prasiognathus), large school of terminal males grazing on algae covered coral boulders, Andaman Sea, Thailand.

Georgette Douwma / Greenthroat or Singapore parrotfish (Scarus prasiognathus), large school of terminal males leaving droppings of ground up coral rock, Andaman Sea, Thailand.

Georgette Douwma / Greenthroat or Singapore parrotfish (Scarus prasiognathus), large school of terminal males swimming over coral reef, Andaman Sea, Thailand.

Georgette Douwma / Greenthroat or Singapore parrotfish (Scarus prasiognathus), large school of terminal males grazing on algae covered coral rubble on sandy bottom, Andaman Sea, Thailand.

Georgette Douwma / Greenthroat or Singapore parrotfish (Scarus prasiognathus), terminal males and females amongst coral, Andaman Sea, Thailand.

Georgette Douwma / Greenthroat or Singapore parrotfish (Scarus prasiognathus), large school of terminal males and females grazing on algae covered coral boulders, Andaman Sea, Thailand.

Georgette Douwma / Greenthroat or Singapore parrotfish (Scarus prasiognathus) large school of terminal males grazing on algae covered coral boulders, Andaman Sea, Thailand.

Georgette Douwma / Greenthroat or Singapore parrotfish (Scarus prasiognathus), large school of terminal males shoaling, Andaman Sea, Thailand.

Georgette Douwma / Indian-ocean steephead parrotfish (Chlorurus strongycephalus) female. Andaman Sea, Thailand.

Georgette Douwma / Greenthroat or Singapore parrotfish (Scarus prasiognathus), terminal male with a Remora or Sharksucker (Echeneis naucrates), Andaman Sea, Thailand.

Alex Mustard / Redband parrotfish (Sparisoma aurofrenatum) pair swimming up into open water to spawn and release their gametes, East End, Grand Cayman, Cayman Islands, British West Indies, Caribbean Sea.

Pete Oxford / Blue Parrotfish (Scarus coeruleus) just below water line, Bonaire, Netherlands Antilles, Caribbean

Pete Oxford / Blue parrotfish (Scarus coeruleus) Bonaire, Netherlands Antilles, Caribbean

Pete Oxford / Midnight parrotfish (Scarus coelestinus) Bonaire, Netherlands Antilles, Caribbean

Pete Oxford / Princess parrotfish (Scarus taeniopterus) Bonaire, Netherlands Antilles, Caribbean

Pete Oxford / Queen parrotfish (Scarus vetula) feeding on algae, Bonaire, Netherlands Antilles, Caribbean

Pete Oxford / Queen parrotfish (Scarus vetula) Bonaire, Netherlands Antilles, Caribbean

Pete Oxford / Queen Parrotfish, initial phase (Scarus vetula) and Trumpetfish (Aulostomus maculatus) Bonaire, Netherlands Antilles, Caribbean

Pete Oxford / Blue parrotfish (Scarus coeruleus) Bonaire, Netherlands Antilles, Caribbean

Pete Oxford / Queen Parrotfish, initial phase (Scarus vetula) sheltering under rock, Bonaire, Netherlands Antilles, Caribbean

Jeff Rotman / Face of Bridled Parrotfish (Scarus frenatus). Egypt, Red Sea.

Jeff Rotman / Pectoral fin of Male Steephead Parrotfish (Chlorurus / Scarus microrhinos). Great Barrier Reef, Coral Sea, Australia.

Jeff Rotman / Close up of mouth of Steepheaded parrotfish (Scarus gibbus) Red Sea, Egypt

Jeff Rotman / Close up of mouth of Steepheaded parrotfish (Scarus gibbus) Red Sea, Egypt

Pete Oxford / Queen Parrotfish (Scarus vetula) feeding on coral, Bonaire, Netherlands Antilles, Caribbean

Pete Oxford / Queen Parrotfish (Scarus vetula) feeding on coral with Trumpetfish (Aulostomus maculatus) nearby waiting for scraps, Bonaire, Netherlands Antilles, Caribbean

Pete Oxford / Queen Parrotfish (Scarus vetula), Bonaire, Netherlands Antilles, Caribbean

Georgette Douwma / Tricolor parrotfish (Cetoscarus / Scarus tricolor) Rinca, Komodo National Park, Indonesia

Georgette Douwma / Redlip parrotfish (Scarus rubroviolaceus) grazing on coral rock. Rinca, Komodo National Park, Indonesia.

Pete Oxford / Blue-chin Parrotfish (Scarus ghobban) Wolf Island in the northern archepelago, Galapagos Islands, Equador, South America

Pete Oxford / Bicolor Parrotfish (Scarus rubroviolaceus) Wolf Island in the northern archepelago, Galapagos Islands, Equador, South America

Jeff Rotman / Pectoral fin of a Rusty parrotfish (Scarus ferrugineus) Red Sea, Egypt

Jeff Rotman / Male Steepheaded Parrotfish (Scarus gibbus) resting on coral reef, Red Sea.

Claudio Contreras / Queen parrot fish (Scarus vetula) Cancun National Park, Caribbean Sea, Mexico, September

Claudio Contreras / Queen parrot fish (Scarus vetula) on coral reef, Cancun National Park, Caribbean Sea, Mexico, September

Jeff Rotman / Close-up of Queen parrotfish (Scarus vetula) mouth, Bahamas, Caribbean Sea

Jeff Rotman / Male Steepheaded parrotfish (Scarus gibbus) in its intial phase, sleeping in protective mucus membrane at night, Red Sea

Fred Bavendam / Redlip Parrotfish (Scarus rubroviolaceus) cleaned by Clear Cleaner Shrimp (Urocaridella antonbruunii), Bali, Indonesia

Fred Bavendam / Filament-finned Parrotfish (Scarus altipinnis) sleeping at night, Coral Sea, Australia

Fred Bavendam / Blue-barred Parrotfish (Scarus ghobban), Andaman Sea, Thailand

Fred Bavendam / Redlip Parrotfish (Scarus rubroviolaceus) mouth showing teeth, Indonesia

Pete Oxford / Bicolor parrotfish (Scarus rubroviolaceus) off Wolf Island, Galapagos Islands

Pete Oxford / Bicolor parrotfish (Scarus rubroviolaceus) off Wolf Island, Galapagos Islands

GEORGETTE DOUWMA / Parrotfish (Scarus sp.) grazing on algae on coral rock, Egypt, Red Sea.

Pete Oxford / Redlip parrotfish (Scarus rubroviolaceus) off Wolf Island in the northern archepelago, Galapagos Islands, Ecuador, South America

Pete Oxford / Redlip parrotfish (Scarus rubroviolaceus) off Wolf Island in the northern archepelago, Galapagos Islands, Ecuador, South America

Pete Oxford / Redlip Parrotfish (Scarus rubroviolaceus), Wolf Island, Galapagos Islands, Ecuador

GEORGETTE DOUWMA / Parrotfish (Scarus sp) on coral reef, Andaman Sea, Thailand

Doug Perrine / Pacific steephead parrotfish {Scarus gibbus} sleeping in mucus cocoon at night, Kimbe Bay, Papua New Guinea

GEORGETTE DOUWMA / Blue-barred parrotfish (Scarus ghoban) with a small wrasse hoping for any escaping prey, Bali, Indonesia

Tim Laman / Massive hard coral (Porites sp.) with bite marks from feeding Parrot fish (Scarus sp) on a coral reef in Palau, Micronesia.

Tim Laman / Reef view with soft corals, fire coral (hydroids), Parrotfish {Scarus sp} and Lyretail Anthias (Pseudanthias squamipinnis) Indo-pacific

Martha Holmes / Rusty parrotfish {Scarus ferrugineus} male at cleaning station, Red Sea

Juergen Freund / Head of Parrotfish {Scarus sp} showing hard beak for feeding on coral, Indo-Pacific

Dan Burton / Redlip parrotfish {Scarus rubroviolaceus} resting on coral reef, Red Sea

Juergen Freund / Princess parrotfish sleeping {Scarus taeniopterus} Caribbean

GEORGETTE DOUWMA / Steepheaded parrotfish (Scarus gibbus) Red Sea, Egypt

Jeff Rotman / Bluebarred Parrotfish (Scarus ghobban) sleeping in rock crevice protected by mucus membrane. Egypt, Red Sea.

GEORGETTE DOUWMA / Parrotfish {Scarus sordidus} feeding on coral, Red Sea

Juergen Freund / Close up of Parrotfish {Scarus sp} head showing mouth with 'beak', Indo pacific

Juergen Freund / Close up of Parrotfish {Scarus sp} head showing mouth with 'beak', Indo pacific

Peter Scoones / Caribbean trumpetfish (Aulostomus maculatus) shadowing Parrotfish (Scarus vetula) over coral reef, Bonaire, Netherlands Antilles, Caribbean Pisciverous trumpet fish gains advantage by closely shadowi...

Doug Perrine / Parrotfish {Scarus sp} sleeping while Vampire snail {Colubraria sp} extends feeding proboscis into its mouth, Similan Is, Thailand

Doug Perrine / Bleeker's parrotfish male asleep in mucous cocoon at night {Scarus bleekeri} Malaysia

Doug Perrine / Swarthy parrotfish {Scarus niger} sleeping in coral at night. Malaysia

Jeff Rotman / Steepheaded parrotfish sleeping (Scarus gibbus) Red Sea, Egypt.

Jeff Rotman / Rusty parrotfish rests in coral (Scarus ferrugineus) Red Sea

Chris Newbert / Parrotfish (Scarus sp) fin detail, Red Sea, Egypt