Alex Mustard / Yellowtail tang (Zebrasoma xanthurum) male and female turn belly to belly during spawning to ensure fertilization. Temple, Ras Umm Sid, Sharm El Sheikh, Sinai, Egypt. Red Sea. This action is very fast...

Michael Pitts / Anemones (Actiniaria) with Maldives anemonefish (Amphiprion nigripes) and Surgeonfish (Acanthurus) moving in a strong current, Maldives, Indian Ocean.

Pascal Kobeh / Ocan Pacifique - Nouvelle caldonie - Gros plan de la tte d'un nason licorne (Naso brevirostris) de nuit Pacific Ocean - New Caledonia - A close-up of the head of a spotted or longnose unicornfish (Na...

Alex Mustard / Bignose unicornfish (Naso vlamingii) profile of male displaying (the blue stripe at the bottom of the frame is the tail of another individual) Baa Atoll, Maldives. Indian Ocean.

Pascal Kobeh / School of Razor surgeonfish (Prionurus laticlavius) Galapagos. Pacific ocean.

Pascal Kobeh / Bluestreak cleaner wrasse (Labroides dimidiatus) cleaning Spotted unicornfish (Naso brevirostris) Palau. Philippine Sea.

Pascal Kobeh / Diagonal-banded / Yellowbanded sweetlips (Plectorhinchus lineatus) cleaning Spotted unicornfish (Naso brevirostris) Palau. Philippine Sea.

Pascal Kobeh / Yellowtail surgeonfish (Prionurus punctatus) grazing algae with a school of Amberstripe scads (Decapterus muroadsi) in background, Baja California peninsula, Mexico. Sea of Cortez.

Pascal Kobeh / Young boy snorkeling at the surface above a coral reef with hard corals (Acropora et porites ) and a Sohal / Red Sea surgeonfish (Acanthurus sohal) Egypt. Red Sea. June 2010.

Pascal Kobeh / Young boy snorkeling at the surface above a coral reef with hard corals (Acropora et porites ) and a Sohal / Red Sea surgeonfish (Acanthurus sohal) and a Klunzinger wrasse (Thalassoma klunzigeri) Egy...