Alex Mustard / Post larval Red Sea sailfin tang (Zebrasoma desjardinii), Gubal Island, Egypt. Strait Of Gubal, Gulf of Suez, Red Sea.

Georgette Douwma / Desjardin's sailfin tang (Zebrasoma desjardinii). Egypt, Red Sea.

Joel Sartore / Photo Ark / Desjardin's sailfin tang (Zebrasoma desjardinii) close up of head looking around and breathing, Aquarium of Boise. Captive.

Alex Mustard / Close up detail of the patterns on a Sailfin tang (Zebrasoma desjardinii), Sharm El Sheikh, Egypt. Red Sea.

Georgette Douwma / RF - Tropical reef fish, composite image on black background, Bennets's toby / Bennet's sharpnose puffer (Canthigaster bennetti), Clown triggerfish (Balistoides conspicillum), Spectacled fi...

Georgette Douwma / Surgeonfish, composite image on black background, Yellowtail tang (Zebrasoma xanthurum), Powder-blue surgeonfish (Acanthurus leucosternon), Elongate surgeonfish (Acanthurus mata), Striped surgeonfish...

Georgette Douwma / Surgeonfish composite image on black background, Powder-blue surgeonfish (Acanthurus leucosternon), Striped surgeonfish (Acanthurus lineatus), Mimic surgeonfish (Acanthurus pyroferus), Sohal surgeonfi...

Georgette Douwma / Surgeonfish composite image on black background, Bluespine surgeonfish (Naso unicornis), Striped surgeonfish (Acanthurus lineatus), Sailffin tang (Zebrasoma veliferum) juvenile, Mimic surgeonfish (Aca...

Noemie Stroh / Red Sea sailfin tang (Zebrasoma desjardinii) school feeding on a coral reef, Zabargad, Red Sea, Egypt, August.

Pascal Kobeh / Two Sailfin surgeonfish (Zebrasoma desjardinii) feeding on a jellyfish, Red Sea, Egypt.