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A tropical island fringing reef, just offshore from Havodda island, Gaafu Dhaalu atoll, in The Maldives, Indian Ocean, Asia
Adult olive-headed sea snake (Hydrophis major), swimming on Ningaloo Reef, Western Australia, Australia, Pacific
Whale shark (Rhincodon typus), underwater with snorkeler on Ningaloo Reef, Western Australia, Australia, Pacific
Whale shark (Rhincodon typus), underwater with snorkelers on Ningaloo Reef, Western Australia, Australia, Pacific
Surfer riding a wave at Ningaloo Reef, Western Australia, Australia, Pacific
Surfer riding a wave at Ningaloo Reef, Western Australia, Australia, Pacific
Adult reef manta ray (Mobula alfredi), underwater in Ningaloo Reef, Western Australia, Australia, Pacific
Adult reef manta ray (Mobula alfredi), underwater in Coral Bay, Western Australia, Australia, Pacific
Adult false killer whales (Pseudorca crassidens), surfacing on Ningaloo Reef, Western Australia, Australia, Pacific
A pod of mammal eating killer whales (Orcinus orca), surfacing on Ningaloo Reef, Western Australia, Australia, Pacific
Humpback whale (Megaptera novaeangliae), adult breaching on Ningaloo Reef, Western Australia, Australia, Pacific
Aerial view by drone of historical island of Ile au Phare (Ile Aux Fouquets) in between coral reef and Indian Ocean, Mahebourg, Mauritius, Indian Ocean, Africa
An adult banded coral shrimp (Stenopus hispidus), on a night snorkel at Arborek Reef, Raja Ampat, Indonesia, Southeast Asia, Asia
A broadclub cuttlefish (Sepia latimanus) lays eggs in a coral colony in Komodo National Park, Indonesia.
A slightly bleached staghorn coral colony grows in shallow water in the Solomon Islands. This Melanesian region is known for its spectacular marine biodiversity.
Blacktip reef sharks swim just under the surface in the Solomon Islands. This beautiful Melanesian region is known for its spectacular reefs and high marine biodiversity.
Soft leather corals grow in the shallow waters in the Solomon Islands, Melanesia. This region, in the eastern part of the Coral Triangle, harbors spectacular marine biodiversity and is known for its beautiful reefs.
A Clark's anemonefish (Amphiprion clarkii) snuggles amongst its host's tentacles on a reef in Lembeh Strait, Indonesia.
A hawksbill sea turtle swims over a coral reef in Palau. This is an endangered species often hunted for its shell and meat.
False clownfish (Amphiprion ocellaris) swim near their host anemone in Alor, Indonesia. This remote region is known for its beautiful reefs and spectacular marine biodiversity.
A Clark's anemonefish (Amphiprion clarkii) snuggles amongst its host's tentacles on a reef in Lembeh Strait, Indonesia.
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 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.
Coral polyps (Galaxea sp.) wait for plankton on a reef in Komodo National Park, Indonesia. This beautiful area harbors extraordinary marine biodiversity and is a popular destination for divers and snorkelers.
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 colorful nudibranch (Nembrotha kubaryana) crawls slowly across a reef near the island of Sulawesi, Indonesia. This beautiful, tropical region is home to an incredible variety of marine life.
A Caribbean reef octopus (Octopus briareus) explores the seafloor of a shallow reef off the coast of Belize. This intelligent cephalpod ranges throughout the Caribbean feeding on lobster, crab, and small fish.
A shallow coral reef thrives in Wakatobi National Park, Indonesia. This remote region is known for its incredible marine biodiversity and gorgeous reefs.
A beautiful reef full of soft corals grows in Komodo National Park, Indonesia.
A Papuan scorpionfish (Scorpaenopsis papuensis) lies on a reef in Raja Ampat, Indonesia. This remote, tropical region is home to extraordinary marine biodiversity.
A well-camouflaged devil scorpionfish (Scorpaenopsis diabolus) waits to ambush prey on a reef in Raja Ampat, Indonesia. This remote, tropical region is home to extraordinary marine biodiversity.
A hawksbill sea turtle (Eretmochelys imbricata) is found on a reef at night in Komodo National Park, Indonesia.
Detail of a feather duster worm growing on a coral reef near Alor in the Lesser Sunda Islands of Indonesia.
Colorful reef fish, mainly Scalefin anthias (Pseudanthias squamipinnis), swim in a strong current near Alor in the Lesser Sunda Islands of Indonesia.
Detail of the tentacles of a tube anemone growing on a coral reef near Alor in Indonesia.
A large roughtail stingray, Dasyatis centroura, lays on the seagrass-covered seafloor of Turneffe Atoll off the coast of Belize. This reef is part of the massive Mesoamerican Reef System in the Caribbean Sea, the second largest barrier reef on Earth.
A beautiful coral reef, dominated by colorful gorgonians, grows along the edge of the Blue Hole in Lighthouse Reef in the Caribbean Sea. This reef is part of the massive Mesoamerican Reef System, the second largest barrier reef on Earth.
A pink anemonefish, Amphiprion perideraion, swims above its beautiful host anemone in Wakatobi National Park, Indonesia.
A large roughtail stingray, Dasyatis centroura, lays on the seagrass-covered seafloor of Turneffe Atoll off the coast of Belize. This reef is part of the massive Mesoamerican Reef System in the Caribbean Sea, the second largest barrier reef on Earth.
A vibrant nudibranch, Chromodoris sp., crawls across a coral reef in the remote, tropical islands of Raja Ampat, Indonesia.
A well-camouflaged reef stonefish, Synanceia verrucosa, waits to ambush prey in Raja Ampat, Indonesia.
A school of lined sweetlips, Plectorhinchus lineatus, swim above a healthy coral reef in Raja Ampat, Indonesia.
A hawksbill sea turtle, Eretmochelys imbricata, lays on a beautiful reef in Komodo National Park, Indonesia. This tropical area in the Lesser Sunda Islands is known for both its amazing marine biodiversity as well its infamous dragons.
A bird's eye view of an idyllic island and healthy fringing reef in Komodo National Park, Indonesia. This tropical area in the Lesser Sunda Islands is known for its marine biodiversity as well as its infamous Komodo dragons.
A loggerhead sea turtle, Caretta caretta, swims over a deep coral reef on Turneffe Atoll, Belize.
A beautiful coral reef thrives just off the island of Ambon, Indonesia.
A bleached magnificent sea anemone is found on a reef off the coast of Sulawesi in Indonesia. Bleaching is usually associated with higher than normal sea temperatures.
A beautiful coral reef thrives around an island in a remote part of Raja Ampat, Indonesia.
Beautiful mushroom coral and reef fish thrive amid the tropical islands of Raja Ampat, Indonesia.
A large manta ray, Mobula alfredi, swimming along a reef drop off in Raja Ampat, Indonesia.
A colorful coral reef grows amid the tropical islands of Raja Ampat, Indonesia.
A massive giant clam, Tridacna gigas, grows on a shallow coral reef in Raja Ampat, Indonesia.
A juvenile painted spiny lobster, Panulirus versicolor, inhabits a crevice on a reef amid the tropical islands of Raja Ampat, Indonesia.
A brightly colored soft coral adorns a beautiful coral reef in Raja Ampat, Indonesia.
Detail of a bulbed anemone, Entacmaea quadricolor, on a coral reef in Komodo National Park, Indonesia.
A healthy coral reef thrives in Komodo National Park, Indonesia.
A healthy coral reef thrives in Komodo National Park, Indonesia.
A lionfish hovers over a coral reef as the sun sets, Raja Ampat, Indonesia.
A hawksbill turtle rests on a coral reef, Raja Ampat, Indonesia.
A school of anthias darts around a coral reef, Anilao, Philippines.
Two anemone fish make their home in a pink anemone, Maldives.
A nurse shark swims along a reef with a school of yellow snapper, Maldives.
A coral bommie full of reef fish and healthy corals, Red Sea.
A large Napoleon wrasse swimming over a coral reef, Red Sea.
A myriad of hard and soft corals, as well as tropical reef fish on the healthy reef near Volivoli Resort on Viti Levu, Fiji, South Pacific, Pacific
A myriad of hard and soft corals, as well as tropical reef fish on the healthy reef near Volivoli Resort on Viti Levu, Fiji, South Pacific, Pacific
A myriad of hard and soft corals, as well as tropical reef fish on the healthy reef near Volivoli Resort on Viti Levu, Fiji, South Pacific, Pacific
A myriad of hard and soft corals, as well as tropical reef fish on the healthy reef near Volivoli Resort on Viti Levu, Fiji, South Pacific, Pacific
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 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
Spinner dolphin pod (Stenella longirostris), swimming near the Volivoli Resort grounds on Viti Levu, Fiji, South Pacific, Pacific
Diving and snorkling area, Punta Perdiz near Playa Giron, Bay of Pigs, Matanzas Province, Cuba, West Indies, Caribbean, Central America
Kyphosus sectatrix seen during the Palancar Gardens, El Cielito and Colombia Deep Reef Snorkelling Tour, Cozumel Island, Quintana Roo State, Mexico
Stingray seen during Palancar Gardens, El Cielito and Colombia Deep Reef Snorkelling Tour, Cozumel Island, Quintana Roo State, Mexico
A myriad of hard and soft corals compete for space on the substrate of the snorkel site known as the Milky Way, Palau, Micronesia, Pacific
Underwater marine life on coral reefs, Thailand
Underwater marine life on coral reefs, Thailand
Underwater view of the reef along the circumference of the Great Blue Hole on Lighthouse Reef, UNESCO, Belize
Underwater view of the reef along the circumference of the Great Blue Hole on Lighthouse Reef, UNESCO, Belize
Horse-eye jacks (Caranx latus), schooling in Hol Chan Marine Preserve, inside the Mesoamerican Barrier Reef, Belize
Nurse sharks (Ginglymostoma cirratum), being fed in Hol Chan Marine Preserve, inside the Mesoamerican Barrier Reef, Belize
Nurse sharks (Ginglymostoma cirratum), being fed in shark and ray alley, Caye Caulker, Mesoamerican Barrier Reef, Belize
Nurse sharks (Ginglymostoma cirratum), being fed in shark and ray alley, Caye Caulker, Mesoamerican Barrier Reef, Belize
Nurse sharks (Ginglymostoma cirratum), being fed in shark and ray alley, Caye Caulker, Mesoamerican Barrier Reef, Belize
Nurse sharks (Ginglymostoma cirratum), being fed in shark and ray alley, Caye Caulker, Mesoamerican Barrier Reef, Belize
Nurse shark (Ginglymostoma cirratum), with boat in Hol Chan Marine Preserve, inside the Mesoamerican Barrier Reef, Belize
Nurse sharks (Ginglymostoma cirratum), massing in Hol Chan Marine Preserve, inside the Mesoamerican Barrier Reef, Belize
Nurse shark (Ginglymostoma cirratum), on the sand in Hol Chan Marine Preserve, inside the Mesoamerican Barrier Reef, Belize
Southern stingray (Hypanus americanus) with snorkeler in shark and ray alley, Caye Caulker, Mesoamerican Barrier Reef, Belize
Southern stingray (Hypanus americanus), with snorkeler in shark and ray alley, Caye Caulker, Mesoamerican Barrier Reef, Belize
Nurse shark (Ginglymostoma cirratum), on the sand in Hol Chan Marine Preserve, inside the Mesoamerican Barrier Reef, Belize
Southern stingray (Hypanus americanus) being fed in shark and ray alley, Caye Caulker, Mesoamerican Barrier Reef, Belize
Southern stingray (Hypanus americanus) over sand in shark and ray alley, Caye Caulker, Mesoamerican Barrier Reef, Belize
Southern stingray (Hypanus americanus) with snorkeler in shark and ray alley, Caye Caulker, Mesoamerican Barrier Reef, Belize
West Indian manatee (Trichechus manatus), on the sand near Caye Caulker, inside the Mesoamerican Barrier Reef, Belize
Spotted eagle ray (Aetobatus narinari), Hol Chan Marine Preserve, inside the Mesoamerican Barrier Reef, Belize
Tarpon (Megalops atlaticus), underwater at feeding station inside the Mesoamerican Barrier Reef, Belize
West Indian manatee (Trichechus manatus), with sharksucker, Caye Caulker, inside the Mesoamerican Barrier Reef, Belize
West Indian manatee (Trichechus manatus), on the sand near Caye Caulker, inside the Mesoamerican Barrier Reef, Belize
West Indian manatee (Trichechus manatus), with snorkeler near Caye Caulker, inside the Mesoamerican Barrier Reef, Belize