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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
Northern (Steller) sea lion (Eumetopias jubatus) fishing on the flood tide in Inian Pass, Southeastern Alaska, United States of America
Northern (Steller) sea lion (Eumetopias jubatus) close-up eating a halibut in Southeastern Alaska, United States of America
Adult sea otter (Enhydra lutris kenyoni) in kelp bed in Inian Pass, Southeastern Alaska, United States of America
Adult sea otter (Enhydra lutris kenyoni) in kelp bed in Inian Pass, Southeastern Alaska, United States of America
Adult humpback whale (Megaptera novaeangliae) breaching along the west side of Chatham Strait in Alaska, United States of America
Adult humpback whale (Megaptera novaeangliae) tail throw among feeding whales in Southeast Alaska, United States of America
Dead and dying pink salmon (Oncorhynchus gorbuscha) gathering after the spawn just outside of Sitka, Alaska, United States of America
Adult fin whale (Balaenoptera physalus) sub-surface feeding in the rich waters off the Svalbard Archipelago, Norway
Adult fin whale (Balaenoptera physalus) sub-surface feeding in the rich waters off the Svalbard Archipelago, Norway
Adult humpback whale (Megaptera novaeangliae), breaching in the fjord of Isfjardardjup, Iceland
A profusion of hard and soft coral underwater on Siaba Kecil, Komodo Island National Park, Indonesia, Southeast Asia, Asia
Map puffer (Arothron mappa) feeding on sponges on the house reef on Sebayur Island, Komodo Island National Park, Indonesia, Southeast Asia, Asia
A school of bigeye trevally (Caranx sexfasciatus), Sebayur Island, Komodo Island National Park, Indonesia, Southeast Asia, Asia
A school of razorfish (Aeoliscus strigatus), head down posture on the house reef at Sebayur Island, Komodo Island National Park, Indonesia, Southeast Asia, Asia
False clown anemonefish (Amphiprion ocellaris), Sebayur Island, Komodo Island National Park, Indonesia, Southeast Asia, Asia
Snap on the water at Stingray City, a reserve hosting tens of stingray circling in the shallow lagoon, Antigua, Leeward Islands, West Indies, Caribbean, Central America
Juvenile Galapagos sea lion (Zalophus wollebaeki) underwater on Rabida Island, Galapagos, Ecuador, South America
Pacific green sea turtles (Chelonia mydas) underwater on Fernandina Island, Galapagos, Ecuador, South America
An adult green sea turtle (Chelonia mydas), underwater in Fernandina Island, Galapagos, Ecuador, South America
Short-finned pilot whale (Globicephala macrorhynchus), underwater off Isla San Marcos, Baja California Sur, Mexico, North America
Curious California sea lions (Zalophus californianus), underwater at Los Islotes, Baja California Sur, Mexico, North America
Adult whale shark (Rhincodon typus), underwater on Ningaloo Reef, Western Australia, Australia, Pacific
Humpback whales (Megaptera novaeangliae), swimming underwater on Ningaloo Reef, Western Australia, Australia, Pacific
California sea lions (Zalophus californianus) underwater at Los Islotes, Baja California Sur, Mexico, North America
Above and below view of glacial ice near Wiencke Island, Neumayer Channel, Antarctica, Polar Regions
Adult killer whale (Orcinus orca) surfacing with kelp on its flukes in Chatham Strait, Southeast Alaska, United States of America, Pacific Ocean, North America
Clown Anemonefish, Indonesia.
A small pod of pack Ice type B killer whales (Orcinus orca), just after making a Weddell seal kill in the Lemaire Channel, Antarctica, Polar Regions
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 Caribbean electric ray (Narcine bancroftii) lays on the sandy seafloor of Turneffe Atoll off the coast of Belize in the Caribbean Sea. This ray can generate strong electric discharges used to defend themselves or to stun prey.
A West Indian starfish (Oreaster reticulatus) crawls slowly across a sandy seafloor in Turneffe Atoll, Belize. This part of Central America is well known for its clear waters and beautiful coral reefs.
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.
Bright sunlight ripples across a shallow sand seafloor in the tropical Pacific Ocean.
A pycnogonid, or sea spider, crawls along the mucky seafloor of Komodo National Park, Indonesia. This tropical region in Indonesia is known for its spectacular coral reefs and high marine biodiversity.
A lionfish (Pterois volitans) swims along the edge of a beautiful reef in Wakatobi National Park, Indonesia. This remote region is known for its incredible marine biodiversity and gorgeous reefs.
A yellow stingray (Urobatis jamaicensis) lays on the sandy seafloor of Turneffe Atoll in Belize. This small and beautiful elasmobranch ranges throughout the Caribbean Sea.
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
Detail of a colorful giant clam (Tridacna squamosa) growing on a reef near Alor in the Lesser Sunda Islands of Indonesia. This remote tropical region is home to extraordinary marine biodiversity. near Alor in the Lesser Sunda Islands of Indonesia.
Colorful and flowering lily pads grow along the shallow edge of a freshwater lake in New England. Aquatic vegetation, which thrives during summer months, provides vital habitat for many fish, amphibians, and reptiles.
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 hawksbill sea turtle (Eretmochelys imbricata) is found on a reef at night in Komodo National Park, Indonesia.
A warty frogfish (Antennarius maculatus) is well-camouflaged as it waits to ambush prey on a reef in Komodo National Park, Indonesia.
A snorkeler swims above a beautiful reef near Alor 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.
Detail of the eye on a blacksaddle snake eel (Ophichthus cephalozona) in Lembeh Strait, Indonesia.
A shortfin lionfish (Dendrochirus brachypterus) waits for prey on the seafloor of Lembeh Strait, Indonesia.
A beautiful nudibranch (Phyllidia ocellata) crawls over the seafloor of Raja Ampat in eastern Indonesia.
A baby broadclub cuttlefish (Sepia latimanus) hovers in Lembeh Strait, 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.
Colorful tunicates, sponges, hydroids, and other invertebrates grow on a reef in Raja Ampat, Indonesia.
A small striped dwarf goby, Trimma striatum, sits on a coral colony in Alor, Indonesia.
A lizardfish, Synodus sp., waits for prey to swim close by on a reef near Alor in Indonesia.
A coconut octopus (Amphioctopus marginatus) clings to shells on the seafloor in Lembeh Strait, Indonesia.
A ribbon eel opens its jaws in Lembeh Strait, Indonesia.
A fire worm crawls across the seafloor of Lembeh Strait, Indonesia.
A well-camouflaged tasseled wobbegong shark (Eucrossorhinus dasypogon) lies on the sandy seafloor of Raja Ampat, Indonesia.
A large banded sea snake, Laticauda colubrina, sinuously swims over a beautiful reef in Wakatobi National Park, Indonesia.
Vibrant tunicates, sponges, hydroids, and echinoderms grow on a coral reef among the remote, tropical islands of Raja Ampat, Indonesia.
A spinner dolphin, Stenella longirostris, gracefully glides through the clear, blue waters of the Pantar Strait near Alor in 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.
Detail of the eye of a blue-spotted pufferfish, Arothron caeruleopunctatus, in Alor, Indonesia.
An unidentified sea snake hunts in a shallow seagrass meadow in Wakatobi National Park, 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 magnificent humpback whale, Megaptera novaeangliae, swims in the clear, blue waters of the Caribbean Sea.
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.
A well-camouflaged ornate ghost pipefish, Solenostomus paradoxus, hovers over a reef in Komodo National Park, 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 unidentified juvenile lionfish hovers above the seafloor in Lembeh Strait, Indonesia.
A beautiful coral reef grows amid the tropical islands of Raja Ampat, Indonesia.
Flamboyant cuttlefish embryos, Metasepia pfefferi, wait to hatch from their eggs on the sandy seafloor in Lembeh Strait, Indonesia.
A soft coral and large gorgonian thrive on 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 colorful warty frogfish, Antennarius maculatus, yawns as it waits for prey to swim close by 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 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.
A lionfish portrait, Anilao, Philippines.
A silky shark swims against a school of black jacks, Socorro Island, Mexico.
A lionfish takes up residence on the deck of the Yamagiri Maru, in the Pacific Ocean, Micronesia.
Reef squid swimming, Anilao, Philippines.
Bubble coral shrimp, Anilao, Philippines.
Striped catfish swim in schools feeding one in front of the other, Anilao, Philippines.
The ocean is beautiful just under the surface near the desolate desert of Egypt.
A crocodile approaches slowly over the sand, Caribbean Sea, Mexico.
Crocodile under water, Caribbean Sea, Mexico.
Head-on view of a giant jawfish in the Sea of Cortez.
A school of fish with a few stragglers catching up to the school, Raja Ampat, Indonesia.