Raccoon butterflyfish (Chaetodon lunula) and saddle wrasse (Thalassoma duperrey), off the island of Lanai, Hawaii, United States of America, Pacific, North America

A myriad of hard and soft corals, as well as tropical reef fish at Vatu-I-Ra Conservation Park on Viti Levu, Fiji, South Pacific, Pacific

Soft corals, sponges, and other invertebrates compete for space on a beautiful reef in Indonesia. This tropical region, within the Coral Triangle, is home to an incredible variety of marine life.

A myriad of hard and soft corals, as well as tropical reef fish at Vatu-I-Ra Conservation Park on Viti Levu, Fiji, South Pacific, Pacific

A beautiful set of tiny tunicates grows on a reef in Indonesia.This tropical region, within the Coral Triangle, is home to an incredible variety of marine life.

A beautiful nudibranch (Hypselodoris bullockii) crawls slowly across a reef in Indonesia. This tropical region, within the Coral Triangle, is home to an incredible variety of marine life.

A shortfin lionfish (Dendrochirus brachypterus) lays on the seafloor waiting for prey to swim near in Indonesia. This tropical region, within the Coral Triangle, is home to an incredible variety of marine life.

A beautiful starfish (Linckia laevigata) lays on a thriving reef in Indonesia. This tropical region, within the Coral Triangle, is home to an incredible variety of marine life.

Abstract of a mushroom coral (Fungia sp.) growing on a reef in Indonesia. This tropical region, within the Coral Triangle, is home to an incredible variety of marine life.

A tiny cleaner shrimp removes parasites from a Black-finned snake eel (Ophichthus cephalozona) on a sandy seafloor in Indonesia. This tropical region, within the Coral Triangle, is home to an incredible variety of marine life.

A Black-finned snake eel (Ophichthus cephalozona) pokes its head out of a sandy seafloor in Indonesia. This tropical region, within the Coral Triangle, is home to an incredible variety of marine life.

An unusual sea star (Linckia laevigata) clings to a diverse reef near the island of Bangka, Indonesia. This beautiful, tropical region is home to an incredible variety of marine life.

Crinoids cling to a large sponge on a healthy coral reef near the island of Sulawesi, Indonesia. This beautiful, tropical region is home to an incredible variety of marine life.

Hard (plate) coral reef.Indo Pacific

Black Brittle Starfish (Ophiocomino nigra), black variety on soft coral and fragile brittle starfish, St Abbs, Scotland, UK North Sea

A multitude of sponges, tunicates, feather stars, sea stars, soft and hard corals as well as fish co-exist harmoniously in the reefs at Cogon, Apo Island marine reserve, Philippines, Visayan sea, Southeast Asia, Asia

Giant clam amongst the soft coral on the Great Barrier Reef, off Cairns, Queensland, Australia, Pacific

Black Brittle Starfish (Ophiocomino nigra), black variety on soft coral and fragile brittle starfish, St Abbs, Scotland, UK North Sea

Common lionfish, Pterois volitans, blends in with a variety of soft corals and sponges, Cars, Dumaguete, Negros Island, Philippines.

Anthias, Pseudanthias sp., swim over a hard coral garden with a variety of different hard corals including table, branching, cabbage or lettuce, staghorn, and leather varieties, Acropora sp., Porites sp., Echinopora sp., Sarcophyton sp., Spice Islands, Maluku Region, Halmahera, Indonesia, Pacific Ocean

Split shot or over under of a shallow reef with a variety of table, leather, and staghorn corals, Acropora sp., Porites sp., Litophyton sp., sarcophyton sp., and the island of Bunaken, Bunaken Marine Park, Manado, North Sulawesi, Indonesia, Pacific Ocean

Blackspotted Puffer (Arothron nigropunctatus, Arothron citrinellus), yellow variety, swimming in coral reef, Great Barrier Reef, UNESCO World Heritage Site, Cairns, Queensland, Australia, Pacific

Colony of coral polyps in brain corallae (Physogyra lichtensteini), Pacific, Great Barrier Reef, UNESCO World Heritage Site, Australia, Oceania

Polyps of a mushroom coral (Fungiidae) Pacific, Great Barrier Reef, UNESCO World Heritage, Australia, Oceania

Soft coral, leather coral (Lobophytum) with semi-enclosed polyps, detail, Pacific, Great Barrier Reef, UNESCO World Heritage, Australia, Oceania

Open coral polyps on the trunk of a soft coral (Dendronephthya), coral, Pacific, Great Barrier Reef, UNESCO World Heritage, Australia, Oceania

Open coral polyps on Mopsella sea fan (Mopsella) Pacific, Great Barrier Reef, UNESCO World Natural Heritage, Australia, Oceania

Limestone skeleton of the Klunzinger soft coral (Dendronephthya klunzingeri), Pacific, Great Barrier Reef, UNESCO World Heritage, Australia, Oceania

Colourful coral reef and schooling fish, Hawaii, United States of America

The Backwall at Molokini Marine Preserve drops down to 300 feet. Various reef fish stick close to a crevice here, Molokini, Maui, Hawaii, United States of America

Indonesia, Bali, Tulumben, Harlequin shrimp (Stenopus pyronotu), blue variety.

Indonesia, Bali, Tulumben, Harlequin shrimp (Stenopus pyronotu), blue variety.