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Colourful Crinoids and Solt Corals at Hanging Gardens, Sipadan Island, Sabah, Malaysia
Featherstars perch on the edge of Gorgonian Sea Fans to feed in the current, Fiji, Pacific Ocean
Resort huts beside coral sand beach, lagoon has outer coral reef, Mana Island, Mamanuca Group, west of Viti Levu, Fiji, South Pacific islands, Pacific
Underwater diver swimming above reef, with orange sea fan, Similan Island, Thailand, Asia
Coral reef and diver, off Sharm el Sheikh, Sinai, Red Sea, Egypt, North Africa, Africa
Lyretail anthias (Pseudanthias squamipinnis), school over mountain coral, reef, Ras Mohammed National Park, Sharm El Sheikh, Red Sea, Egypt, North Africa, Africa
Coral substrate forming an underwater cave, Ras Mohammed National Park, Sharm El Sheikh, Red Sea, Egypt, North Africa, Africa
Underwater view of a coral encrusted lobster pot on sandy ocean floor, Ras Mohammed National Park, Red Sea, Egypt, North Africa, Africa
Scuba diver and instructor performing skills next to coral, Sharm El Sheikh, Red Sea, Egypt, North Africa, Africa
Tropical coral reef scene with a leafy cup coral (salad coral) (Turbinaria reniformi), Ras Mohammed National Park, off Sharm el Sheikh, Sinai, Egypt, Red Sea, Egypt, North Africa, Africa
Horses, Hacienda Gauachipelin,near Rincon de la Vieja National Park, Gaunacaste, Costa Rica
Coral Bay beach, Pangkor Island, Perak State, Malaysia, Southeast Asia, Asia
Fakarawa, Tuamotu Archipelago, French Polynesia, Pacific Islands, Pacific
Tikehau, Tuamotu Archipelago, French Polynesia, Pacific Islands, Pacific
Island hopping by catamaran around coral fringe in clear waters, Bacuit Bay, El Nido Town, Palawan, Philippines, Southeast Asia, Asia
Typical healthy Red Sea hard coral reef landscape, Marsa Alam, Egypt, North Africa, Africa
Typical healthy Red Sea hard coral reef landscape, Marsa Alam, Egypt, North Africa, Africa
Tropical lagoon and coral reef, Baa Atoll, Maldives, Indian Ocean, Asia
Leaf fish (Taenianotus Triacanthus), an ambush predator found amonst corals, Celebes Sea, Sabah, Malaysia, Southeast Asia, Asia
The popcorn shrimp (Periclimenes kororensis) in fungid coral (Heliofungia actiniformis) (mushroom coral), Celebes Sea, Sabah, Malaysia, Southeast Asia, Asia
Aerial view of atolls and coral reefs in the Maldives, Indian Ocean
Turquoise water and the Beachcomber Le Paradis five star hotel, with Mont Brabant in the background, Mauritius, Indian Ocean, Africa
Galapagos penguins, Galapagos Islands, Ecuador, South America
A Pacific green turtle, Galapagos Islands, Ecuador, South America
A Pacific green turtle, Galapagos Islands, Ecuador, South America
Aerial view of island, Maldives, Indian Ocean, Asia
Aerial view of lagoon, Maldives, Indian Ocean, Asia
Aerial view of an sandbank and lagoon, Maldives, Indian Ocean, Asia
Parrotfish (Scaridae) an important herbivore in the coral reef ecosystem, for sale in Kudat fish market, Sabah, Malaysian Borneo, Malaysia, Southeast Asia, Asia
Aerial view of people on jet skis, Coral Bay, Paphos, Cyprus, Mediterranean, Europe
Scuba diving on a healthy coral reef in the Gaafu Dhaalu atoll, in the Maldives, Indian Ocean.
Golden damselfish (Amblyglyphidodon aureus) a zoo plankton feeding coral reef fish seen here ingesting food, Matangi Island, Vanua Levu, Fiji, Pacific
Aerial view of Coral Bay, Paphos, Cyprus, Mediterranean, Europe
Red Sea coral grouper (Plectropomus pessuliferus) close-up, Ras Mohammed National Park, off Sharm el-Sheikh, Sinai, Red Sea, Egypt, North Africa, Africa
The critically endangered hawksbill turtle (Eretmochelys imbricata) above coral reef, Ras Mohammed National Park, off Sharm el-Sheikh, Sinai, Red Sea, Egypt, North Africa, Africa
Giant sea fan (Gorgonian fan coral) (Annella mollis), Ras Mohammed National Park, Red Sea, Egypt, North Africa, Africa
Coral reef scene, Ras Mohammed National Park, Sharm el-Sheikh, Red Sea, Egypt, North Africa, Africa
Tropical coral reef scene with a large table coral (Acropora pharaonis), Ras Mohammed National Park, off Sharm el-Sheikh, Sinai, Red Sea, Egypt, North Africa, Africa
Colourful healthy hard and soft coral reef with long nosed butterflyfish (Forcipiger flavissimus), Matangi Island, Vanua Levu, Fiji, Pacific
Leopard shark, Dimaniyat Islands, Gulf of Oman, Oman, Middle East
Spotted eel at the Aquarium, Dimaniyat Islands, Gulf of Oman, Oman, Middle East
Free spotted eel, Dimaniyat Islands, Gulf of Oman, Oman, Middle East
Leopard shark, Dimaniyat Islands, Gulf of Oman, Oman, Middle East
The lagoon with the world's most southerly coral reef, at this 10km long volcanic island in the Tasman Sea, Lord Howe Island, UNESCO World Heritage Site, New South Wales, Australia, Pacific
Banded coral shrimp (Stenopus hispidus), Dominica, West Indies, Caribbean, Central America
Coral hind (cephalopholis), Southern Thailand, Andaman Sea, Indian Ocean, Southeast Asia, Asia
Allied cowry (Phenacovolva gracilis), Southern Thailand, Andaman Sea, Indian Ocean, Asia
Pink Dendronephthya, soft coral, and anemonefish, Southern Thailand, Andaman Sea, Indian Ocean, Asia
Fire coral and hard coral reef, Ras Mohammed National Park, off Sharm el Sheikh, Sinai, Egypt, Red Sea, Egypt, North Africa, Africa
Close-up of giant sea fan coral (Gorgonian fan coral) (Annella mollis), Ras Mohammed National Park, off Sharm el Sheikh, Sinai, Egypt, Red Sea, Egypt, North Africa, Africa
Hard coral and tropical reef scene, Ras Mohammed National Park, off Sharm el Sheikh, Sinai, Egypt, Red Sea, North Africa, Africa
Close-up of brain coral (Platygyra Daedalea), Ras Mohammed National Park, off Sharm el Sheikh, Sinai, Egypt, Red Sea, Egypt, North Africa, Africa
Magnificent anemone (Heteractis magnifica), Ras Mohammed National Park, off Sharm el Sheikh, Sinai, Egypt, Red Sea, Egypt, North Africa, Africa
School of sergeant major fish (Abudefduf vaigiensis) over pristine coral reef, Jackson Reef, off Sharm el Sheikh, Sinai, Egypt, Red Sea, Egypt, North Africa, Africa
Fish eye view with honeycomb stingray (Himantura uarnak), Shallow bay, Ras Mohammed National Park, off Sharm el Sheikh, Sinai, Egypt, Red Sea, Egypt, North Africa, Africa
Tropical coral reef scene in natural lighting, Ras Mohammed National Park, off Sharm el Sheikh, Sinai, Egypt, Red Sea, Egypt, North Africa, Africa
Magnificent anemone (Heteractis magnifica), Ras Mohammed National Park, off Sharm el Sheikh, Sinai, Egypt, Red Sea, Egypt, North Africa, Africa
Medium shoal or school of blue striped snapper (Lutjanus kasmira) close to coral reef, Naama Bay, off Sharm el Sheikh, Sinai, Egypt, Red Sea, Egypt, North Africa, Africa
Aerial view of coral reef and islands, Maldives, Indian Ocean, Asia
Coral plates, lagoon and tropical island, Maldives, Indian Ocean, Asia
View over Coral Beach and Loch Dunvegan, Claigan, near Dunvegan, Isle of Skye, Inner Hebrides, Highland, Scotland, United Kingdom, Europe
Hard and soft coral landscape scenic at Thetford Reef on the Great Barrier Reef, UNESCO World Heritage Site, Cairns, Queensland, Australia, Pacific
Scuba diver swimming with Gopro in coral landscape scenic at Thetford Reef on the Great Barrier Reef, UNESCO World Heritage Site, Cairns, Queensland, Australia, Pacific
An aerial view of the Great Barrier Reef, UNESCO World Heritage Site, Queensland, Australia, Pacific
Mast Head Island, Great Barrier Reef, UNESCO World Heritage Site, Queensland, Australia, Pacific
Reef scene with sea fan, Komodo, Indonesia, Southeast Asia, Asia
Half underwater split view of Coral Beach on Pigeon Island National Park, Trincomalee, Sri Lanka, Asia
View of coral beach on Pigeon Island National Park, Trincomalee, Sri Lanka, Asia
Azure vase sponge (Callyspongia plicifera), and sunburst, St. Lucia, West Indies, Caribbean, Central America
Ghostgoby (Pleurosicya mossambica), on a whip coral, Philippines, Southeast Asia, Asia
Commensal shrimp (Periclimenes brevicarpalis), Philippines, Southeast Asia, Asia
Golden damsel fish (Amblyglyphidodon aureus) in a coral encrusted bottle, Sulawesi, Indonesia, Southeast Asia, Asia
Aerial photography of coral reef formations of the Great Barrier Reef, UNESCO World Heritage Site, near Cairns, North Queensland, Australia, Pacific
Striped sweetlips (diagonal banded sweetlips) (Plectorhinchus lineatus), North Ribbon Reef, Great Barrier Reef, UNESCO World Heritage Site, Queensland, Australia, Pacific
Colourful reef fish (Orange and purple anthias sp.) plus with hard and soft corals on reef wall, Queensland, Australia, Pacific
Longnose butterflyfish (Forcipiger flavissimus), adapted to feed in crevices in the reef and snips off soft pieces of corals, Queensland, Australia, Pacific
Colourful reef fish (Orange and purple anthias sp.) plus Leopard Coral grouper (Plectropomus leopardus) with hard and soft corals on reef, Queensland, Australia, Pacific
Mating display by pair of Wire-net filefish (Cantherhines paradalis), Queensland, Australia, Pacific
Colourful, coral covered Reef wall at Osprey Reef, Longfin banner fish (Heniochus acuminatus), Coral Sea, Queensland, Australia, Pacific
View over shore at low tide to distant Coral Beach, Claigan, near Dunvegan, Isle of Skye, Inner Hebrides, Highland, Scotland, United Kingdom, Europe
Adult whitetip reef shark (Triaenodon obesus) with cleaner wrasse, Roroia, Tuamotus, French Polynesia, South Pacific, Pacific
Yellow Tube Sponges in Coral Reef, Aplysina fistularis, Caribbean Sea, Dominica
Christmas-Tree Worm, Spirobranchus giganteus, Osprey Reef, Coral Sea, Australia
A colony of red whip fan corals with crinoids, Papua New Guinea, Pacific
Lyretail anthias (Pseudanthias squamipinnis) side view of two females, Ras Mohammed National Park, off Sharm el-Sheikh, Sinai, Red Sea, Egypt, North Africa, Africa
Coral reef scene close to the ocean surface, Ras Mohammed National Park, off Sharm el Sheikh, Sinai Red Sea, Egypt, North Africa, Africa
Tropical coral reef scene with a leafy cup coral (salad coral) (Turbinaria reniformi), Ras Mohammed National Park, off Sharm el Sheikh, Sinai, Egypt, Red Sea, Egypt, North Africa, Africa
Erect rope sponge (Amphimedon compressa), St. Lucia, West Indies, Caribbean, Central America
Rising to 260 feet above sea level, Makatea is a raised coral atoll with fresh water, Tuamotus, French Polynesia, South Pacific, Pacific
Parrotfish in lagoon, The Maldives, Indian Ocean, Asia
Reef of Table Corals, Acropora sp., Felidhu Atoll, Maldives
Reef Stonefish, Synanceia verrucosa, Osprey Reef, Coral Sea, Australia
Mountain coral (porites lutea), Ras Mohammed National Park, Sharm El Sheikh, Red Sea, Egypt, North Africa, Africa
Coral grouper, Kimbe Bay, Papua New Guinea, Pacific
A gathering of crinoid feather stars, Papua New Guinea, Pacific
Nudibranch on coral, Papua New Guinea, Pacific
Common lionfish (Pterois volitans), full body view, Solomon Islands, South Pacific, Pacific
Close-up view of a Hawksbill sea turtle next to a red sea fan on a reef in Raja Ampat, West Papua, Indonesia, Southeast Asia, Asia
A flame tip hermit crab (Calcinus minutus), found in branching hard coral, Yap, Micronesia, Pacific
A marble starfish (elegant starfish) (Fromia elegans), on hard coral, Fiji, South Pacific, Pacific