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Featherstars perch on the edge of Gorgonian Sea Fans to feed in the current, Fiji, Pacific Ocean

Crowd of tropical reef fish including scissortail sergeants and grunts, Solomon Islands, Pacific Ocean

Featherstars perch on the edge of Gorgonian Sea Fans to feed in the current, Fiji, Pacific Ocean

The Great Barrier Reef, Queensland, Australia

Coral reef and diver, off Sharm el Sheikh, Sinai, Red Sea, Egypt, North Africa, Africa

Rock Art, Fremont style anthropomorphs dating from AD 500 to 1300, Capitol Reef National Park, Utah, United States of America, North America

Mormon Pioneer Wagon, Capitol Reef National Park, Utah, United States of America, North America

Fruita Schoolhouse dating from 1896, Capitol Reef National Park, Utah, United States of America, North America

Historic Gifford Homestead Barn dating from 1908, Capitol Reef National Park, Utah, United States of America, North America

Layered sandstone formation, Capitol Reef National Park, Utah, United States of America, North America

Praia do Camilo (Camilo beach) and coastline, Lagos, Western Algarve, Algarve, Portugal, Europe

Island and reef, Maldives, Indian Ocean, Asia

Great Barrier Reef, UNESCO World Heritage Site, Queensland, Australia, Pacific

The yellow moray eel (Gymnothorax melatremus) living in an artificial reef under an oil rig near Mabul Island, Celebes Sea, Sabah, Malaysia, Southeast Asia, Asia

Tropical lagoon and coral reef, Baa Atoll, 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

A great barracuda (Sphyraena barracuda) comes close to the reef to be cleaned by a cleaner wrasse, Hawaii, United States of America, Pacific, North America

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

Aerial view of atolls and islands in The Maldives, Indian Ocean, Asia

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

Aerial view of coral reef and islands, Maldives, Indian Ocean, Asia

Free diving snorkeller and sunburst on the Great Barrier Reef, UNESCO World Heritage Site, Cairns, Queensland, Australia, Pacific

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

Aerial 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

Striped sweetlips (diagonal banded sweetlips) (Plectorhinchus lineatus), North Ribbon Reef, Great Barrier Reef, UNESCO World Heritage Site, Queensland, Australia, Pacific

Schooling yellow-striped goatfish (Mulloidichthys vanicolensis). Great Barrier Reef, 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

Potato cod (Epinephelus tukula) (potato grouper) (potato bass), Cod Hole, North Ribbon reef, Great Barrier Reef, Queensland, Australia, Pacific

Colourful, coral covered Reef wall at Osprey Reef, Longfin banner fish (Heniochus acuminatus), Coral Sea, Queensland, Australia, Pacific

Snorkeling the pristine reefs on the remote Island of Alofi in The French Territory of Wallis and Futuna Islands, South Pacific Islands, Pacific

Blacktip reef sharks (Carcharhinus melanopterus) cruising the shallow waters of Moorea, Society Islands, French Polynesia, South Pacific, Pacific

Blacktip reef sharks (Carcharhinus melanopterus) cruising near tourists at Stingray City, Moorea, Society Islands, French Polynesia, South Pacific, Pacific

Blacktip reef shark (Carcharhinus melanopterus) cruising the shallow waters of Moorea, Society Islands, French Polynesia, South Pacific, Pacific

Blacktip reef sharks (Carcharhinus melanopterus) cruising the shallow waters of Moorea, Society Islands, French Polynesia, South Pacific, Pacific

Broadclub Cuttlefish, Sepia latimanus, Great Barrier Reef, Australia

A hard coral reef along with schooling anthias and reef fish, Crystal Bay, Bali island, Indonesia, Southeast Asia, Asia

Tropical coral reef scene in natural lighting, Ras Mohammed National Park, off Sharm el Sheikh, Sinai, Egypt, Red Sea, Egypt, North Africa, Africa

Snorkeling the pristine reefs on the remote Island of Alofi in The French Territory of Wallis and Futuna Islands, South Pacific Islands, Pacific

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

Typical healthy Red Sea hard coral reef landscape, Marsa Alam, Egypt, North Africa, Africa

Gray reef shark, Papua New Guinea, Pacific

The Caribbean reef squid (Sepioteuthis sepioidea), in the Caribbean Sea, Bonaire, St. Eustatius and Saba, Central America

The shell of Hawaiian reef lobster (Enoplometopus occidentalis), covered in algae and parasitic barnacles, Hawaii, United States of America, Pacific, North America

A longjaw squirrelfish (Sargocentron spiniferum), and a school of bigscale soldierfish (Myripristis berndti), Hawaii, United States of America, Pacific, North America

Grey reef sharks (Carcharhinus amblyrhynchos), at a controlled feeding of the island of Yap, Micronesia, Pacific

Grey reef shark, Turks and Caicos, West Indies, Caribbean, Central America

Whitetip reef sharks (Triaenodon obesus) resting on the ocean floor, Hawaii, United States of America, Pacific, North America

Reef Manta Ray, Manta alfredi, Ari Atoll, Indian Ocean, Maldives

Reef Manta over Shoal of Glassy Fish, Manta alfredi, North Ari Atoll, Indian Ocean, Maldives

Red Snapper, Lutjanus bohar, Great Barrier Reef, Australia

Papuan scorpionfish lying on a reef, Kimbe Bay, Papua New Guinea, Pacific

A colony of red whip fan corals with crinoids, Papua New Guinea, 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

View over South Coast and coral reef, Antigua, Leeward Islands, West Indies, Caribbean, Central America

A hawksbill sea turtle (Eretmochelys imbricata), in a colorful overhang on a reef in the Koro Sea, Fiji, South Pacific, Pacific

Green sea turtles (Chelonia mydas), an endangered species, Hawaii, United States of America, Pacific, North America

Several green sea turtles (Chelonia mydas) gather at a cleaning station off West Maui, Hawaii, United States of America, Pacific, North America

Blacktip reef shark (Carcharhinus melanopterus), Yap, Micronesia, Pacific

Blacktip reef sharks (Carcharhinus melanopterus), Yap, Micronesia, Pacific

Alcyonaria coral with schooling anthias dominate this Fijian reef scene, Fiji, South Pacific, Pacific

Potato Cod, Epinephelus tukula, Cod Hole, Great Barrier Reef, Australia

Resort huts beside coral sand beach, lagoon has outer coral reef, Mana Island, Mamanuca Group, west of Viti Levu, Fiji, South Pacific islands, Pacific

Historic Gifford Homestead Barn dating from 1908, Capitol Reef National Park, Utah, United States of America, North America

A gathering of crinoid feather stars, Papua New Guinea, Pacific

Gray reef shark with remora, Papua New Guinea, Pacific

Nudibranch on coral, Papua New Guinea, Pacific

Common lionfish (Pterois volitans), full body view, Solomon Islands, South Pacific, Pacific

Bigfin reef squid (Sepioteuthis lessoniana), tending eggs which have been laid along a buoy line, taken at dusk, Lembeh Strait, Indonesia, Southeast Asia, Asia

Bigfin reef squid (Sepioteuthis lessoniana) tending eggs which have been laid along a buoy line, taken at dusk, Lembeh Strait, Indonesia, Southeast Asia, Asia

Colorful soft corals (Dendronephthya sp.) adorn the stunning reefs of southern Raja Ampat, West Papua, Indonesia, Southeast Asia, Asia

The reef manta ray (Manta alfredi) with yellow pilot fish in front of its mouth, Dampier Strait, Raja Ampat, West Papua, Indonesia, Southeast Asia, Asia

A blackspotted puffer (Arothron nigropunctatus) curled up on the reef for the night, Philippines, Southeast Asia, Asia

A hawksbill turtle (Eretmochelys imbricata), swims over a reef in the Pacific Ocean, Philippines, Southeast Asia, Asia

Green sea turtle getting its shell cleaned by goldring surgeonfish off Maui, Hawaii, United States of America, Pacific, North America

An inflated guineafowl pufferfish (Arothron meleagris), on a drop off in Fiji, South Pacific, Pacific

A female blacktip reef shark (Carcharhinus melanopterus), off the island of Yap, Micronesia, Pacific

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