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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.
Detail of coral polyps growing on a healthy reef in 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.
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 magnificent sea anemone, Heteractis magnifica, grows on a 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 well-camouflaged ornate ghost pipefish, Solenostomus paradoxus, hovers over a reef in Komodo National Park, Indonesia.
A blue starfish, Linkia laevigata, clings to coralline algae on a reef in Sulawesi, Indonesia.
A beautiful coral reef thrives around an island in a remote part of Raja Ampat, Indonesia.
A bigfin reef squid, Sepioteuthis lessoniana, hovers midwater in Lembeh Strait, Indonesia.
A beautiful coral reef thrives amid the tropical islands of Raja Ampat, Indonesia.
A vibrant and diverse coral reef grows amid the tropical islands of Raja Ampat, Indonesia.
A beautiful nudibranch, Doriprismatica atromarginata, feeds on a reef in Indonesia's Banda Sea.
Detail of a bulbed anemone, Entacmaea quadricolor, on a coral reef in Komodo National Park, Indonesia.
A barred-fin moray eel, Gymnothorax zonipectus, is found on a coral reef in Komodo National Park, Indonesia.
Detail of a reef-building coral colony, Favia sp., growing on a healthy reef in Komodo National Park, Indonesia.
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 reef squid hovers in mid-water, Anilao, Philippines.
A pod of four dolphins swim playfully near a popular coral reef in the Red Sea.
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 yellow snapper hovers close to a coral reef, Maldives.
A nurse shark swims along a reef with a school of yellow snapper, Maldives.
A lionfish poses on a coral reef, Red Sea.
A coral bommie in the Red Sea at Yolanda Reef is full of anthias fish.
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
A myriad of hard and soft corals at Vatu-I-Ra Conservation Park 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
A Caribbean reef shark (Carcharhinus perezi) in the Turks and Caicos.
A diver shines a light in on a cavern filled with glassy sweepers (Pempheris schomburgkii) at Molasses Reef in Key Largo, Florida.
A colorful reef scene with sunburst at Cozumel, Mexico.
A hawksbill sea turtle resting under a reef in Cozumel, Mexico.
School of silversides form shapes in the tunnels at Eden Rock, Grand Cayman.
Hawksbill sea turtle eating, Castle Wall, Grand Cayman.
Sea fan on the colorful reefs of Komodo, Indonesia.
Soft corals in the colorful reefs of the Banda Sea, Indonesia.
Snorkeler exploring heart-shaped reef in Banda Sea, Indonesia.
Soft coral in the reef at Komodo, Indonesia.
Soft coral in the reef at Komodo, Indonesia.
Soft coral in the reef at Komodo, Indonesia.
A Sheepshead looks on as a pair of Blue Angelfish appear to be confused on which direction to go but each are feeding on different parts of coral and algae covered jetty rocks at St. Andrew Bay channel wall in Panama City Beach, Florida.
A Whitetip Reef Shark laying on the bottom in the sand and looking up at the above approaching photographer in the clear South Pacific ocean off Likuri Island, Fiji.
Pink anemonefish (Amphiprion perideraion) guard their anemone on a coral reef in the South Pacific ocean near Tavarua Island off the coast of Veti Levu, Fiji.
A large Southern Stingray (Dasyatis americana), lays motionless covered in sand but ready to fly away with wing tips slightly elevated above the sand, alongside a coral reef in the Atlantic Ocean off the coast of Key Largo, Florida.
A Porkfish (Anisotremus virginicus) swims by sea plumes out from under a coral reef ledge in the Atlantic Ocean off the coast of Key Largo, Florida.
A Blue Parrotfish (Scarus coeruleus) swimming up after munching on the coral reef below in the Atlantic Ocean off the coast of Key Largo, Florida.
A Blue Chromis (Chromis cyanea) swims into the current to maintain station over a colorful reef in the Atlantic Ocean off the coast of Key Largo, Florida.
A large Goliath Grouper, Epinephelus itajara, effortlessly floats by and over the City of Washington shipwreck in about 60 feet of water off the coast of Key Largo, Florida.
Schooling anthias fish and healthy corals of Beqa Lagoon, Fiji.
A large common lionfish (Pterois volitans) swimming at Beqa Lagoon, Fiji.
Sea anenome in the Beqa Lagoon reef, Fiji.
A large red gorgonian sea fan, Beqa Lagoon, Fiji.
Close-up of a popcorn shrmp (Periclimenes brevicarpalis) on an anenome on a Fijian Reef.
Nudibranch feeding on algae, Papua New Guinea.
Nudibranch feeding on algae, Papua New Guinea.
Scribbled Pipefish on a pink sponge, Papua New Guinea.
Dog face puffer hides in a sponge, Papua New Guinea.
Nudibranch feeding on algae, Papua New Guinea.
Dwarf Hawkfish, Papua New Guinea.
Crab-eyed Goby displaying its colorful fins, Papua New Guinea.
Hawksbill turtle glides over the pristine reefs in Fiji.
Divers descend onto a deep wreef with red sea whip corals, Fiji.
A school of orange basslets (Pseudanthias squamipinnis) on a healthy Fijian reef full of hard and soft corals, Fiji.
A beautiful Ribbon Eel displays its open mouth to the photographer,Fiji.
A beautiful blue ribbon eel displays its open mouth to the photographer, Fiji.
Detailed view of soft coral revealing the spicules that give stability to its form, Fiji.
Red goby sitting motionless on whip coral, Fiji.
Teardrop Butterflyfish swim within a protective coral arch, Fiji.
Huge bull shark with mouth open, Fiji.
A school of orange basslets (Pseudanthias squamipinnis) on a healthy coral reef, Fiji.
Sharptaiil Eel searchs the reef for food, Bonaire, Caribbean Netherlands.
Swarms of small baitfish swim above a large sea anenome, Fiji.
Diver swims through the shallow reef towards shore, Bonaire, Caribbean Netherlands.
Scuba diver and a common spiny lobster, Bonaire, Caribbean Netherlands.
A common spiny lobster backs his way into the protection of the reef, Bonaire, Caribbean Netherlands.
Purple sponge on a deep reef, Bonaire, Caribbean Netherlands.
Sharknose Goby sits on some hard coral, Bonaire, Caribbean Netherlands.
Scuba diver swimming underwater amongst sea sponges, Bonaire, Caribbean Netherlands.
A Secretary Blenny looks out from its coral home, Bonaire, Caribbean Netherlands.
A Secretary Blenny looks out from its coral home, Bonaire, Caribbean Netherlands.
Schooling Brown Chromis, Bonaire, Caribbean Netherlands.
Hawksbill sea turtle (Eretmochelys imbricata), a critically endangered species, frontal view, South Ari Atoll, Maldives.
A reef manta ray (Mobula alfredi) swimming above a reef top in Komodo National Park, Indonesia.
Diver looks on at sponges, soft corals and crinoids in a colorful Komodo seascape, Komodo National Park, Indonesia.
A diver swims over a Komodo reef with a hawksbill sea turtle off of Indonesia.
Caribbean reef shark swallowing a lionfish, with mouth open and eyelids closed, Jardines De La Reina, Cuba.
Pair of Caribbean reef sharks (Carcharhinus perezi) swimming along the reef, Jardines De La Reina, Cuba.
Pair of Chromodoris annae nudibranch with brilliant blue and yellow skirt, crawling over green and pink coral, Anilao, Batangas, Philippines.
Orange gorgonian sea fan, Christmas Island, Australia.
Giant Grouper, Great Barrier Reef, Queensland, Australia.
Divers photographing a Giant Grouper, Great Barrier Reef, Queensland, Australia.
Giant Grouper, Great Barrier Reef, Queensland, Australia.
Octopus on reef, Koh Bon, Similan Islands, Thailand.
Diver with large purple sea fan, Cariibean Sea.
Stoplight Parrotfish on Caribbean reef.
A lionfish hovers over a reef with Snell's window in the background, Raja Ampat, Indonesia.
Coral Reefs Monument at the waterfront of San Miguel de Cozumel, Cozumel Island, Quintana Roo State, Mexico