Alex Mustard / Grooved brain coral (Diploria labyrinthiformis) at night with polyps extended to feed, Grand Cayman, Cayman Islands, British West Indies. Caribbean Sea.

David Fleetham / Pair of Tomato anemonefish (Amphiprion frenatus) in Bulb tenacle sea anemone (Entacmaea quadricolor), Philippines.

David Fleetham / Bubble coral shrimp (Vir philippinensis) on Bubble coral (Plerogyra sp), Philippines.

David Fleetham / Necklace sea star (Fromia monilis) on gorgonian coral, Indonesia.

David Fleetham / Pair of squat lobsters (Galathea sp) on Gorgonian coral, Komodo, Indonesia.

Claudio Contreras,Claudio Contreras / Dynamite blasted reef, near Taglibas, Danajon Bank, Central Visayas, Philippines, April 2013

Juergen Freund / Flexible Leather Coral (Sinularia flexibilis) spawning during the annual mass coral spawning event, in November, Great Barrier Reef, Queensland, Australia

Juergen Freund / Coral reef split level with mangroves with snorkeller, Raja Ampat, West Papua, Indonesia, February 2012 Model released.

Juergen Freund / Coral reef split level with mangroves. Raja Ampat, West Papua, Indonesia, February 2012

Juergen Freund / Raja Ampat pygmy seahorse (Hippocampus sp.) Raja Ampat, West Papua, Indonesia

Juergen Freund / Fluorescent corals (Trachyphyllia geoffroyi) Great Barrier Reef, Australia

Juergen Freund / Fluorescent corals (Favia sp) Great Barrier Reef, Australia