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Black-lined sapsucking slug, Romblon, Philippines.
Bubble-tip anemone in Komodo National Park, Indonesia.
A tiny cleaner shrimp removes parasites from a Black-finned snake eel (Ophichthus cephalozona) on a sandy seafloor in Indonesia. This tropical region, within the Coral Triangle, is home to an incredible variety of marine life.
A school of big-eye jacks (Caranx sexfasciatus) above a coral reef in the Solomon Islands. This region is known for its healthy fish populations.
Detail of anchor coral tentacles (Euphyllia sp.) growing on a reef in Indonesia. This area is known for its high marine biodiversity.
A large reef manta ray (Mobula alfredi) swims through clear water in Raja Ampat, Indonesia. This beautiful region is known as the heart of the Coral Triangle and is a popular destination for scuba divers and snorkelers.
A pair of colorful tunicates grows on a reef in Lembeh Strait, Indonesia. This is a filter-feeding organism.
Beautiful soft coral colonies grow on a healthy coral reef in Komodo National Park, Indonesia. This tropical region in Indonesia is known for its spectacular coral reefs and high marine biodiversity.
A beautiful coral reef grows near a set of limestone islands in Raja Ampat, Indonesia. This remote, equatorial region is known as the heart of the Coral Triangle. It is a popular destination for scuba divers and snorkelers.
A West Indian starfish (Oreaster reticulatus) crawls slowly across a sand and seagrass seafloor in Turneffe Atoll, Belize. This part of Central America is well known for its clear waters and beautiful coral reefs.
Colorful gorgonians and reef-building corals grow in shallow water near the famous Blue Hole in Belize. This part of Central America is well known for its clear waters and beautiful coral reefs.
Vibrant soft coral colonies grow on a reef dropoff in Lembeh Strait, Indonesia. This area is known for its spectacular marine biodiversity.
A pair of spotted eagle rays (Aetobatus narinari) swim over the deep, sandy seafloor near Cocos Island, Costa Rica. This remote, Pacific island is famous for its healthy fish and shark populations.
A spotted eagle ray (Aetobatus narinari) swims over the deep, sandy seafloor near Cocos Island, Costa Rica. This remote, Pacific island is famous for its healthy fish and shark populations.
A crown-of-thorns starfish (Acanthaster planci) feeds on coral near Cocos Island, Costa Rica.
A hairy frogfish (Antennarius striatus) uses its incredible camouflage to successfully capture prey in Lembeh Strait, Indonesia.
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.
A shortfin lionfish (Dendrochirus brachypterus) lays on the seafloor waiting for prey to swim near in Indonesia. This tropical region, within the Coral Triangle, is home to an incredible variety of marine life.
Colony of tunicates grow on a reef in Wakatobi National Park, Indonesia. This remote region is known for its incredible marine biodiversity and gorgeous reefs.
Detail of the colorful dorsal fin of a scorpionfish (Scorpaenopsis sp.) in Wakatobi National Park, Indonesia. This remote region is known for its incredible marine biodiversity and gorgeous reefs.
A beautiful and healthy coral reef grows in Komodo National Park, Indonesia.
A beautiful set of corals grows in extremely shallow water in Komodo National Park, Indonesia.
A large map pufferfish (Arothron mappa) swims along a reef in Komodo National Park, Indonesia.
A hermit crab crawls across a reef in Raja Ampat, Indonesia. This remote, tropical region is home to extraordinary marine biodiversity.
A sleek blue shark (Prionace glauca) cruises through the cold waters off Cape Cod, Massachusetts, in the Atlantic Ocean. These beautiful elasmobranchs are found throughout the world in both temperate and tropical seas and are a species listed as Near Thre
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 above a beautiful set of corals growing near Alor in the Lesser Sunda Islands of Indonesia.
A snorkeler swims above a beautiful reef near Alor in the Lesser Sunda Islands of Indonesia.
Colorful reef fish, mainly Scalefin anthias (Pseudanthias squamipinnis), swim above a healthy reef in the Lesser Sunda Islands of Indonesia.
A traditional fish trap, made out of bamboo, captures small reef fish near Alor in the Lesser Sunda Islands of Indonesia.
A beautiful coral colony (Heliopora sp.) grows in Komodo National Park, 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 traditional fish trap, made out of bamboo, captures small reef fish near Alor in the Lesser Sunda Islands of Indonesia.
A blue line grouper (Cephalopholis formosa) swims on a reef in the Lesser Sunda Islands of Indonesia.
Colorful anthias fish swim above a beautiful coral reef in Alor, Indonesia.
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.
A pair of vibrant nudibranchs, Nembrotha kubaryana, mate on 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 humpback whale, Megaptera novaeangliae, raises its powerful fluke out of the blue waters of the Caribbean Sea and slams it down on the surface to communicate.
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 Wonderpus, Wunderpus photogenicus, hunts for prey on the sandy seafloor in Lembeh Strait, Indonesia.
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.
Detail of a sponge growing on a reef in Lembeh Strait, Indonesia.
A beautiful coral reef thrives around an island in a remote part of Raja Ampat, Indonesia.
A school of blue-green damselfish, Chromis viridis, hovers amid the tropical islands of Raja Ampat, Indonesia.
Humbug damselfish hover above protective corals in Raja Ampat, Indonesia.
A blue sea star, Linkia laevigata, clings to a healthy coral reef in Raja Ampat, Indonesia.
A beautiful, vibrant coral reef grows amid the tropical islands of Raja Ampat, Indonesia.
A thick school of yellow-striped scad swims below a jetty amid the tropical islands of 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, Chromodoris coi, crawls across the seafloor in Komodo National Park, Indonesia.
A colorful ornate ghost pipefish, Solenostomus paradoxus, hovers over a coral reef 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.
Detail of a scorpionfish's face in Indonesia's Banda Sea.
A cute red-spotted blenny, Blenniella chrysospilos, looks out from its protective home on a coral reef in Indonesia. This combtooth blenny feeds on algae.
A colorful warty frogfish, Antennarius maculatus, yawns as it waits for prey to swim close by in Komodo National Park, Indonesia.
A bright yellow crinoid clings to a healthy coral reef near Alor, Indonesia.
Detail of a reef-building coral colony, Favia sp., growing on a healthy reef in Komodo National Park, Indonesia.
A starry night octopus, Callistoctopus luteus, searches for prey on a reef flat at night in Raja Ampat, Indonesia.
Detail of a reef-building coral colony, Favia sp., growing on a healthy reef in Komodo National Park, Indonesia.
A Nembrotha cristata nudibranch crawls over a tunicate.
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.
A black manta ray, Mobula alfredi, visits a cleaning station on a reef in Komodo National Park, Indonesia.
Detail of a reef-building coral colony growing on a healthy reef 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 greater blue-ring octopus, Hapalochlaena lunulata, crawls across a coral reef in Komodo National Park, Indonesia. There are several blue-ring octopus species and all of them are extremely venomous.
A beautiful coral reef thrives in shallow water in Indonesia's Banda Sea.
A healthy coral reef thrives in Komodo National Park, Indonesia.
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.
Two nudibranchs with two emperor shrimp riding on their backs, Tulamben, Bali, Indonesia.
A tiny white hairy frogfish, Anilao, Philippines.
A stargazer hides under the sand waiting to ambush its prey, Anilao, Philippines.
A lionfish portrait, Anilao, Philippines.
A giant jawfish brooding eggs in its mouth, Sea of Cortez, Mexico.
A reef squid hovers in mid-water, Anilao, Philippines.
A cuttlefish hunts at night, Anilao, Philippines.
Pelagic planktonic shrimp, Anilao, Philippines.
Striped catfish swim in schools feeding one in front of the other, Anilao, Philippines.
A pod of four dolphins swim playfully near a popular coral reef in the Red Sea.
A hawksbill turtle glides through the water on a sunny day.
A school of unicorn fish hover over the Yolanda wreck, Red Sea, Egypt.
Huge table corals cover a reef in Indonesia that is teeming with fish, Raja Ampat, Indonesia.
Panamic cushion stars (Pentaceraster cumingi), gather on the sea floor, Sea of Cortez.
A Doriprismatica nudibranch face on portrait, Anilao, Philippines.
A seahorse clings to a soft coral in a bed of sand, Anilao, Philippines.
A colorful tiger shrimp ventures from its home under rubble for only a few seconds, Anilao, Philippines.
Cyerce elegans is one of the beautiful butterfly nudibranchs found in the Philippines, Anilao, Philippines.
A hawksbill sea turtle glides over the ocean floor, Maldives.
Several pink anemones cluster on top of a coral outcropping providing homes for several anemone fish, Maldives.
A coral bommie full of life, Maldives.
Adult male Magellan goose (upland goose) (Chloephaga picta), on New Island in the Falkland Islands, South Atlantic Ocean, South America
Adult Peale's Dolphin (Lagenorhynchus australis), bow-riding near New Island in the Falkland Islands, South America
Several intermediate and one adult longfin spadefish (Platax teira) swimming in the Maldives.
Humpback whale (Megaptera novaeangliae) calf learning to slap the water surface.