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Detail of a feather duster worm growing on a coral reef near Alor in the Lesser Sunda Islands of Indonesia.
Colorful chocolate chip sea stars (Protoreaster nodosus) lay on the shallow sandy seafloor of Raja Ampat in eastern Indonesia.
A school of striped eel catfish (Plotosus lineatus) swarms over a reef searching for food in the Lesser Sunda Islands of Indonesia.
A white-spotted jellyfish (Phyllorhiza punctata) drifts in a strong current in the Lesser Sunda Islands of Indonesia.
A white-spotted jellyfish (Phyllorhiza punctata) drifts in a strong current 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.
A beautiful coral reef grows near an island in the Banda Sea, Indonesia.
A beautiful coral reef grows near an island in the Banda Sea, Indonesia. This remote and historic region, known previously for the Spice Islands, harbors extraordinary marine biodiversity.
A beautiful coral reef grows near an island in the Banda Sea, Indonesia. This remote and historic region, known previously for the Spice Islands, harbors extraordinary marine biodiversity.
Colorful anthias fish swim above a beautiful reef growing near an island in the Banda Sea, Indonesia. This remote and historic region, known previously for the Spice Islands, harbors extraordinary marine biodiversity.
A crown of thorns starfish (Acanthaster planci) feeds on a coral reef growing near an island in the Banda Sea, Indonesia.
A large banded sea snake, Laticauda colubrina, sinuously swims over a beautiful reef in Wakatobi National Park, Indonesia.
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.
Colorful anthias fish swim above a beautiful coral reef in Alor, Indonesia.
A colorful queen conch, Strombus gigas, lies on the seagrass-covered seafloor of Turneffe Atoll in Belize. Conchs are an important marine resource as they are sought for food.
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 beautiful coral reef, dominated by colorful gorgonians, grows along the edge of Turneffe Atoll in the Caribbean Sea. This reef is part of the massive Mesoamerican Reef System, the second largest barrier reef on Earth.
A colorful West Indian starfish, Oreaster reticulatus, crawls over a shallow, sandy seafloor in Turneffe Atoll in the Caribbean Sea. This reef is part of the massive Mesoamerican Reef System, the second largest barrier reef on Earth.
Colorful chocolate chip sea stars, Protoreaster nodosus, cover the seafloor in a seagrass meadow in Wakatobi National Park, Indonesia.
An unidentified sea snake hunts in a shallow seagrass meadow in Wakatobi National Park, Indonesia.
A pair of vibrant nudibranchs, Nembrotha kubaryana, mate on 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.
A well-camouflaged reef stonefish, Synanceia verrucosa, waits to ambush prey in Raja Ampat, Indonesia.
Rugged and remote, limestone islands rise around a beautiful lagoon seascape in Raja Ampat, Indonesia. This region is known as the heart of the Coral Triangle due to its incredible marine biodiversity. It is a popular destination for scuba divers and snor
Vibrant sea cucumbers, tunicates, hydroids, and other invertebrates cling to a reef in Raja Ampat, Indonesia.
A school of silversides swims in the shallows in a remote part of Raja Ampat, Indonesia.
A banded sea krait, Laticauda colubrina, searches for prey on a coral reef in Raja Ampat, Indonesia. This tropical area is known for its extraordinary marine biodiversity and is a popular destination for divers and snorkelers.
A bright cup coral, Tubastrea sp., grows on a remote reef in Raja Ampat, Indonesia.
Discarded plastic bags and other trash float above a shallow coral reef in Raja Ampat, Indonesia. Plastics have become a major pollution problem worldwide.
A school of lined sweetlips, Plectorhinchus lineatus, swim above a healthy coral reef in Raja Ampat, Indonesia.
Colorful chocolate chip starfish lie scattered on the floor of a 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.
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 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, swims over 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 colorful nudibranch, Hypselodoris tryoni, crawls across a sandy sea floor 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 colorful nudibranch, Hypselodoris tryoni, crawls across a sandy sea floor 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.
Aerial view of a healthy fringing reef along the edge of Komodo Island 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.
Aerial view of the idyllic island of Gili Banta just outside of 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 bird's eye view shows the rugged landscape of Komodo Island 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 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 healthy and colorful coral reef thrives among the scenic islands of Raja Ampat, Indonesia.
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 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 broadclub cuttlefish, Sepia latimanus, hovers above a reef in Sulawesi, Indonesia.
A beautiful coral reef thrives around an island in a remote part of Raja Ampat, Indonesia.
Beautiful corals and reef fish thrive amid the tropical islands of Raja Ampat, Indonesia.
A brightly colored soft coral adorns prop roots in a blue water mangrove forest in Raja Ampat, Indonesia.
A beautiful coral reef thrives around an island in a remote part of Raja Ampat, Indonesia.
A beautiful coral reef grows amid the tropical islands of Raja Ampat, Indonesia.
A beautiful coral reef thrives amid the tropical islands of Raja Ampat, Indonesia.
A beautiful coral reef thrives amid the tropical islands of Raja Ampat, Indonesia.
A huge giant clam, Tridacna gigas, grows on a shallow coral reef 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 mushroom coral and reef fish thrive amid the tropical islands of Raja Ampat, Indonesia.
Vibrant soft corals, Dendronephthya sp., thrive among the islands of Raja Ampat, Indonesia.
A beautiful, vibrant 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 brightly colored soft coral adorns a beautiful coral reef in Raja Ampat, Indonesia.
A colorful warty frogfish, Antennarius maculatus, yawns as it waits for prey to swim close by in Komodo National Park, Indonesia.
A beautiful nudibranch, Doriprismatica atromarginata, feeds on a reef in Indonesia's Banda Sea.
A small, well-camouflaged cuttlefish, Sepia sp., hovers on a rocky seafloor in the Banda Sea, Indonesia.
A colorful warty frogfish, Antennarius maculatus, yawns as it waits for prey to swim close by in Komodo National Park, Indonesia.
A barred-fin moray eel, Gymnothorax zonipectus, is found on a coral reef in Komodo National Park, Indonesia.
A broadclub cuttlefish, Sepia latimanus, hovers over a healthy reef on the remote island of Teun in Indonesia's Banda Sea.
A bright yellow crinoid clings to a healthy coral reef near Alor, Indonesia.
A Nembrotha cristata nudibranch crawls over a tunicate.
Crinoids and soft corals cover this reef in Raja Ampat, Indonesia.
A giant oceanic manta ray hovers over a cleaning station near a sea fan, Raja Ampat, Indonesia.
Sea lions play among the baitfish under the California Oil Rigs, Southern California.
Anemone fish outside their closed anemone home.
A green sea turtle swims by a reef under the sun, North Sulawesi, 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 black-banded sea krait, Laticauda semifasciata, swims over beautiful corals off the remote island of Manuk in the Banda Sea, Indonesia. This volcanic island is known as the island of the snakes.
A spotted porcelain crab, Neopetrolisthes maculatus, snuggles into its host anemone in Komodo National Park, Indonesia.
A black-banded sea krait, Laticauda semifasciata, swims over beautiful corals off the remote island of Manuk in the Banda Sea, Indonesia. This volcanic island is known as the island of the snakes.
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 healthy coral reef thrives 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 humpback whale and her calf at the surface.
A humpback whale and her calf play near the surface.
A white crab holds its eggs under its carapace until they hatch, Tulamben, Bali, Indonesia.
A cleaner shrimp searches for parasites on the head of this spotted moray eel, Tulamben, Bali, Indonesia.
A very small (2-3mm) nudibranch in its natural habitat, Tulamben, Bali, Indonesia.
Two nudibranchs with two emperor shrimp riding on their backs, Tulamben, Bali, Indonesia.
The curled arm of a crinoid, Anilao, Philippines.
Two mandarinfish spawn and release eggs, Anilao, Philippines.
A tiny white hairy frogfish, Anilao, Philippines.
Two shrimp on a whip coral, Anilao, Philippines.
A lionfish portrait, Anilao, Philippines.
A young sea lion plays under the an oil rig platform, Southern California.
A giant jawfish brooding eggs in its mouth, Sea of Cortez, Mexico.
Turtle gazes at its reflection under the USS Kittiwake shipwreck in Grand Cayman, Cayman Islands.
A Caribbean reef shark and a school of fish, Grand Cayman, Cayman Islands.
A scorpionfish sits on a reef with a big frown, Red Sea, Egypt.
A manta ray passes overhead under the sun, Socorro Island, Mexico.
A pod of four dolphins swim playfully near a popular coral reef in the Red Sea.
The ocean is beautiful just under the surface near the desolate desert of Egypt.