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Detail of anchor coral tentacles (Euphyllia sp.) growing on a reef in Indonesia. This area is known for its high marine biodiversity.
Fragile corals grow in extremely shallow water in Komodo National Park, Indonesia. This part of the Coral Triangle is known for its high marine biodiversity and is a popular destination for scuba divers and snorkelers.
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 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.
Detail of a mushroom coral (Fungia sp.) on a reef in Komodo National Park, Indonesia. This tropical region in Indonesia is known for its spectacular coral reefs and high marine biodiversity.
Sunlight sparkles through a table coral (Acropora sp.) in Komodo National Park, Indonesia. This tropical region in Indonesia is known for its spectacular coral reefs and high marine biodiversity.
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.
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.
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.
A colorful set of gorgonians, reef-building corals, and other invertebrates grow on a diverse reef in the Caribbean Sea.
Christmas tree worms (Spirobranchus giganteus) grow on a coral reef in Wakatobi National Park, Indonesia. This remote region is known for its incredible marine biodiversity and gorgeous reefs.
Colorful reef fish, mainly Scalefin anthias (Pseudanthias squamipinnis), swim above a beautiful set of corals growing near Alor in the Lesser Sunda Islands of Indonesia.
Detail of a mushroom coral, Fungia sp., growing on a beautiful reef in Wakatobi National Park, Indonesia.
Fast-growing staghorn coral fragments, Acropora sp., are being grown in hopes of replanting colonies in reef areas of the Caribbean Sea that have been damaged.
A vibrant nudibranch, Chromodoris sp., crawls across a coral reef in the remote, tropical islands of Raja Ampat, Indonesia.
A beautiful coral reef thrives among the remote, tropical islands of Raja Ampat, Indonesia.
Detail of coral polyps, Tubastrea sp., growing on a healthy reef in Raja Ampat, Indonesia.
An ornate ghost pipefish, Solenostomus paradoxus, hovers near a hydroid on a reef in Raja Ampat, Indonesia.
Bright beams of sunlight descend into the shadows of a blue water mangrove forest in Raja Ampat, Indonesia.
Healthy corals grow on the edge of a mangrove forest in a remote part of Raja Ampat, Indonesia.
Garden coral, sponges, and other invertebrates grow in a shallow seagrass meadow 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 beautiful coral reef thrives 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.
Healthy corals grow on a vibrant reef in Raja Ampat, Indonesia.
An amazingly beautiful coral reef thrives among the scenic islands of Raja Ampat, Indonesia.
A school of blue-green damselfish, Chromis viridis, hovers amid the tropical islands of Raja Ampat, Indonesia.
A blue sea star, Linkia laevigata, clings to a healthy coral reef in Raja Ampat, Indonesia.
Beautiful corals 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 beautiful, vibrant coral reef grows amid the tropical islands of Raja Ampat, Indonesia.
A healthy coral reef thrives in Komodo National Park, Indonesia.
Crinoids and soft corals cover this reef in Raja Ampat, Indonesia.
A healthy coral reef thrives in Komodo National Park, Indonesia.
A scorpionfish sits on a reef with a big frown, Red Sea, Egypt.
A pair of cuttlefish mating over a coral reef, Raja Ampat, Indonesia.
A coral bommie full of life, 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 titan triggerfish hovers in a cleaning station, Red Sea.
Crinoid in Raja Ampat, Indonesia.
Underwater profusion of hard plate corals at Pulau Setaih Island, Natuna Archipelago, Indonesia, Southeast Asia, Asia
Snorkeler in underwater profusion of hard plate corals at Pulau Setaih Island, Natuna Archipelago, Indonesia, Southeast Asia, Asia
Spotted eagle rays (Aetobatus narinari) underwater at Leon Dormido Island off San Cristobal Island, Galapagos, UNESCO World Heritage Site, Ecuador, South America
Spotted eagle ray (Aetobatus narinari) underwater at Leon Dormido Island off San Cristobal Island, Galapagos, UNESCO World Heritage Site, Ecuador, South America
A myriad of hard and soft corals at Vatu-I-Ra Conservation Park on Viti Levu, Fiji, South Pacific, Pacific
Freakled hawkfish (Paracirrhites forsteri) sits on some Acropora coral on a Fijian reef.
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
Blue ocean underwater background, 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
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
Southern stingray (Hypanus americanus), with snorkeler in shark and ray alley, Caye Caulker, Mesoamerican Barrier Reef, Belize
Green sea turtle (Chelonia mydas), feeding on the sand near Caye Caulker, inside the Mesoamerican Barrier Reef, Belize
Green sea turtle (Chelonia mydas), feeding on the sand near Caye Caulker, inside the Mesoamerican Barrier Reef, Belize
Green sea turtle (Chelonia mydas), surfacing for air near Caye Caulker, inside the Mesoamerican Barrier Reef, Belize
Green sea turtle (Chelonia mydas), surfacing for air near Caye Caulker, inside the Mesoamerican Barrier Reef, Belize
Green sea turtle (Chelonia mydas), surfacing for air near Caye Caulker, inside the Mesoamerican Barrier Reef, Belize
Green sea turtle (Chelonia mydas), with snorkeler near Caye Caulker, inside the Mesoamerican Barrier Reef, Belize
Chindonan Island, Calamian Islands, Coron, Palawan, Philippines, Southeast Asia, Asia
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 hawksbill sea turtle swims over a coral reef in Palau. This is an endangered species often hunted for its shell and meat.
A tube anemone (Cerianthid sp.) feeds on planktonic organisms on a sand slope in Indonesia.
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.
Vibrant tunicates, sponges, hydroids, and echinoderms grow on a coral reef among the remote, tropical islands of Raja Ampat, Indonesia.
A crown-of-thorns sea star (Acanthaster planci) feeds on a living coral colony among the remote, tropical islands of Raja Ampat, Indonesia.
A beautiful coral reef thrives in a remote part of Raja Ampat, Indonesia.
A false clownfish, Amphiprion ocellaris, swims among the tentacles of its host anemone in Raja Ampat, Indonesia.
A beautiful coral reef grows in a remote part of Raja Ampat, Indonesia.
A beautiful coral reef thrives 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.
Sunlight shines on beautiful corals thriving among the scenic islands of Raja Ampat, Indonesia.
Healthy corals and other invertebrates thrive on a reef in Sulawesi, Indonesia.
A beautiful coral reef grows amid the tropical islands of Raja Ampat, Indonesia.
A soft coral and large gorgonian thrive on a beautiful coral reef in Raja Ampat, Indonesia.
A beautiful coral reef thrives in shallow water in Indonesia's Ceram Sea.
A beautiful coral reef thrives in shallow water in Indonesia's Banda Sea. This part of eastern Indonesia is home to part of the world's greatest marine biodiversity.
A beautiful coral reef thrives in shallow water in Indonesia's Banda Sea.
The ocean is beautiful just under the surface near the desolate desert of Egypt.
Several pink anemones cluster on top of a coral outcropping providing homes for several anemone fish, Maldives.
A reef manta ray (Mobula alfredi), hovers over a reef where small cleaner wrasse will relieve her of her parasites, Maldives.
Just beneath the surface of the Red Sea lies a beautiful hard coral garden.
Coral reef and sponges, Belize.
Guadalupe fur seals (Arctocephalus townsendi), underwater on Las Animas Island, Baja California Sur, Sea of Cortez, Mexico, North America
A myriad of hard and soft corals at Vatu-I-Ra Conservation Park on Viti Levu, Fiji, South Pacific, Pacific
A myriad of hard and soft corals at Vatu-I-Ra Conservation Park on Viti Levu, Fiji, South Pacific, Pacific
Aerial of a traditional Dhow on a white sand beach, Goa island near the Island of Mozambique, Mozambique, Africa
Bigeye Trevally (Caranx sexfasciatus), schooling in Cabo Pulmo National Marine Park, Baja California Sur, Mexico, North America
Sea Star seen during the Palancar Gardens, El Cielito and Colombia Deep Reef Snorkelling Tour, Cozumel Island, Quintana Roo State, Mexico
Bulog Dos Island, Calamian Islands, Coron, Palawan, Philippines, Southeast Asia, Asia
Half above and half below on a remote small Islet in the Badas Island Group off Borneo, Indonesia, Southeast Asia, Asia
A myriad of hard and soft corals compete for space on the substrate of Darwin's Wall, Palau, Micronesia, Pacific
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
Underwater reef system on pink sand beach, Komodo National Park, Komodo Island, Indonesia, Southeast Asia, Asia
Profusion of hard and soft corals as well as reef fish underwater at Batu Bolong, Komodo National Park, Flores Sea, Indonesia, Southeast Asia, Asia
Aerial panoramic of white sand beach and coral reef, Long Bay, Antigua and Barbuda,, Leeward Islands, West Indies, Caribbean, Central America
Christmas tree worms (Spirobranchus giganteus), in the shallow reefs off Bangka Island, Indonesia, Southeast Asia, Asia