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A colorful bouquet of tunicates grows on the seafloor of Lembeh Strait, Indonesia.
A well-camouflaged tasseled wobbegong shark (Eucrossorhinus dasypogon) lies on the sandy seafloor of Raja Ampat, Indonesia.
A well-camouflaged yellow stingray, Urobatis jamaicensis, swims over a shallow seagrass meadow growing within Turneffe Atoll's lagoon in the Caribbean Sea. This reef is part of the massive Mesoamerican Reef System, the second largest barrier reef on Earth
A warty sea star, Echinaster callosus, clings to a coral reef in Raja Ampat, Indonesia.
A beautiful nudibranch, Bornella anguilla, crawls over black sand in Komodo National Park, Indonesia. This rare nudibranch can swim over short distances quite well.
A beautiful coral reef thrives amid the tropical islands of Raja Ampat, Indonesia.
A colorful flamboyant cuttlefish, Metasepia pfefferi, crawls across the sandy seafloor in Lembeh Strait, Indonesia.
Orange soft corals carpet a shallow reef wall in Raja Ampat, Indonesia.
Lion (Panthera leo), Kgalagadi Transfrontier Park, encompassing the former Kalahari Gemsbok National Park, South Africa, Africa
A humpback whale and her calf play near the surface.
A very small (2-3mm) nudibranch in its natural habitat, Tulamben, Bali, Indonesia.
A stargazer hides under the sand waiting to ambush its prey, Anilao, Philippines.
Two shrimp on a whip coral, Anilao, Philippines.
This fish is having its gills cleaned by a cleaner wrasse so it opens wide allowing the fish to come in and feed on parasites, Raja Ampat, Indonesia.
A white paddleflap rhinopias showing off its handsome profile, Anilao, Philippines.
Marbled grouper from the French Polynesian Islands gather in the South Pass of Fakarava to spawn just once a year, French Polynesia.
A leopard shark swims close to a coral reef, Maldives.
Adult black-browed albatross (Thalassarche melanophrys), in flight returning to nesting site on West Point Island, Falklands, South America
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
Two polar bears walking on glacier in Bjornsundet, Spitsbergen, Norway, Europe
Adult bull southern elephant seal (Mirounga leonina) issuing a bellowing challenge at Gold Harbour on South Georgia, Polar Regions
African elephants (Loxodonta africana) at sunset, Nxai Pan National Park, Botswana, Africa
An adult golden-mantled ground squirrel (Callospermophilus lateralis) feeding, Rocky Mountain National Park, Colorado, United States of America, North America
Herd of cows in the Aosta Valley, Vetan, Aosta Valley, Italian Alps, Italy, Europe
Common zebra (plains zebra) (Burchell's zebra) (Equus burchelli) colt, Ngorongoro Crater, Tanzania, East Africa, Africa
A young killer whale (Orcinus orca) surfacing in Glacier Bay National Park, Southeast Alaska, United States of America, Pacific Ocean, North America
Curious walrus (Odobenus rosmarus rosmarus) near Apollo Island in Franz Josef Land, Russia, Arctic Ocean, Eurasia
Young adult polar bear (Ursus maritimus) on ice in Hinlopen Strait, Svalbard, Norway, Scandinaiva, Europe
Atlantic walrus (Odobenus rosmarus rosmarus) hauled out on ice near Cape Fanshawe, Spitsbergen, Svalbard, Norway, Scandinavia, Europe
Adult fin whale (Balaenoptera physalus) surfacing near Gosbergkilen, Spitsbergen, Svalbard, Norway, Scandinavia, Europe
Camel driver, Sahara Desert, Merzouga, Morocco, North Africa, Africa
American Bison (Bison Bison) in the snow in the Badlands, Badlands National Park, South Dakota, United States of America, North America
Mosaic boxer crab (Lybia tessellata) with anemone pom-poms, Tulamben, Bali, Indonesia.
Lined squat lobster (Raymunida lineata), Anilao, Philippines.
Several intermediate and one adult longfin spadefish (Platax teira) swimming in the Maldives.
A longspine grouper (Epinephelus longispinis) being cleaned by a cleaner wrasse (Labroides dimidiatus).
Humpback whale (Megaptera novaeangliae) calf playing at the surface.
Spiny lobsters under an overhang in Cozumel, Mexico.
Red lionfish in Malaysia.
White-eyed moray eel in Malaysia.
Southern stingray on the sandbar in Grand Cayman, Cayman Islands.
Oxeye scad in Raja Ampat, Indonesia.
Pair of Lionfish, Indonesia.
Shrimp on bubble coral, Indonesia.
Goby with a hermit crab, Australia.
Guadalupe fur seals (Arctocephalus townsendi), underwater on Las Animas Island, Baja California Sur, Sea of Cortez, Mexico, North America
Guadalupe fur seals (Arctocephalus townsendi), underwater on Las Animas Island, Baja California Sur, Sea of Cortez, Mexico, North America
Adult bull walrus (Odobenus rosmarus rosmarus) hauled out on the beach in the Svalbard Archipelago, Norway, Arctic, Europe
Adult Svalbard reindeer (Rangifer tarandus platyrhynchus) grazing on tundra in the Svalbard Archipelago, Norway, Arctic, Europe
Adult Svalbard reindeer (Rangifer tarandus platyrhynchus) grazing on tundra in the Svalbard Archipelago, Norway, Arctic, Europe
Black-legged kittiwakes (Rissa tridactyla) colony on the cliffs of Alkerfjellet, Svalbard, Arctic
Macro photograph of a spider (Order Araneae) in the Galapagos Island Archipelago, UNESCO World Heritage Site, Ecuador, South America
Camel in Wadi Rum, UNESCO World Heritage Site, Jordan, Middle East
An introduced adult cane toad (Rhinella marina), at night on the Volivoli Resort grounds on Viti Levu, Fiji, South Pacific, Pacific
Polar bear (Ursus Maritimus) on Axel Heiberg island, Nunavut, Canadian Arctic, Canada, North America
Polar bear (Ursus Maritimus) on Axel Heiberg island, Nunavut, Canadian Arctic, Canada, North America
Galapagos Marine Iguana (Amblyrhynchus cristatus) Santa Cruz island, Galapagos, UNESCO World Heritage Site, Ecuador, South America
African elephant (Loxodonta africana) at waterhole, Nxai Pan National Park, Botswana, Africa
Antarctic fur seal pup (Arctocephalus gazella) playing in the kelp on Prion Island in the Bay of Isles on South Georgia, Polar Regions
Adult black-browed albatross (Thalassarche melanophrys) in Elsehul on South Georgia, Southern Ocean, Polar Regions
Guadalupe fur seals (Arctocephalus townsendi), at new haul out on Las Animas Island, Baja California Sur, Sea of Cortez, Mexico, North America
Guadalupe fur seal (Arctocephalus townsendi), at new haul out on Las Animas Island, Baja California Sur, Sea of Cortez, Mexico, North America
Guadalupe fur seal (Arctocephalus townsendi), at new haul out on Las Animas Island, Baja California Sur, Sea of Cortez, Mexico, North America
Guadalupe fur seals (Arctocephalus townsendi), at new haul out on Las Animas Island, Baja California Sur, Sea of Cortez, Mexico, North America
Adult elegant tern (Thalasseus elegans), looking for fish on Isla Carmen, Baja California Sur, Sea of Cortez, Mexico, North America
Adult elegant tern (Thalasseus elegans), looking for fish on Isla Carmen, Baja California Sur, Sea of Cortez, Mexico, North America
Adult striated caracara (Phalcoboenus australis), close-up, on Carcass Island in the Falkland Islands, South Atlantic Ocean, South America
Striated caracara (Phalcoboenus australis) feather detail, on Carcass Island in the Falkland Islands, South Atlantic Ocean, South America
Anhinga (Anhinga anhinga) perching on branch on Lake Sandoval, Tambopata National Reserve, Peru, South America
Crabeater seal with open mouth on ice floe, Antarctica, Polar Regions
Svalbard reindeer (Rangifer tarandus) on the tundra in Varsolbukta, Bellsund, Spitsbergen, Arctic, Norway, Scandinavia, Europe
Steep cliffs filled with nesting birds on the south side of Bjornoya, Bear Island, Svalbard, Arctic, Norway, Scandinavia, Europe
Adult polar bear (Ursus maritimus) on first year sea ice in Olga Strait, near Edgeoya, Svalbard, Arctic, Norway, Scandinavia, Europe
A male lion (Panthera leo) with its cubs, Savuti, Chobe National Park, Botswana, Africa
Magellanic penguin (Spheniscus magellanicus), Magdalena Island, Magallanes Region, Punta Arenas, Chile, South America
Magdalena Island, Magallanes Region, Punta Arenas, Chile, South America
A brown horse grazing peacefully by Song-Kol Lake in serene landscape on a sunny day, Kyrgyzstan, Central Asia, Asia
Galapagos Giant Tortoise (Chelonoidis chathamensis), can live for over 100 years, on San Cristobal island, Galapagos, UNESCO World Heritage Site, Ecuador, South America
California gray whale calf (Eschrictius robustus), surfacing in San Ignacio Lagoon, Baja California, Mexico, North America
Chimpanzee (Pan troglodytes), Gombe Stream National Park, Lake Tanganyika, Tanzania, East Africa, Africa
Chimpanzee (Pan troglodytes), Gombe Stream National Park, Lake Tanganyika, Tanzania, East Africa, Africa
Chimpanzee (Pan troglodytes), Gombe Stream National Park, Lake Tanganyika, Tanzania, East Africa, Africa
Sally lightfoot crab (Grapsus grapsus) in the littoral of the Galapagos Island Archipelago, UNESCO World Heritage Site, Ecuador, South America
Adult red-billed tropicbird (Phaethon aethereus) in flight in the Galapagos Island Archipelago, UNESCO World Heritage Site, Ecuador, South America
Tourist photographing a wild Galapagos giant tortoise (Geochelone elephantopus) feeding on the upslope grasslands of Santa Cruz Island, Galapagos, UNESCO World Heritage Site, Ecuador, South America
Thomson's gazelles (Eudorcas thomsonii), in Ngorongoro Crater, UNESCO World Heritage Site, Tanzania, East Africa, Africa
A young African bush elephant (Loxodonta africana), Tarangire National Park, Tanzania, East Africa, Africa
An adult brown skua (Catharacta antarctica) feeding on a dead elephant seal pup at St. Andrews Bay, South Georgia
Northern giant petrels (Macronectes halli) fighting over the scavenging rights to a dead fur seal pup at St. Andrews Bay, South Georgia
Pregnant female southern elephant seal (Mirounga leonina) giving birth on the beach in Stromness Bay, South Georgia Island
Female southern elephant seal (Mirounga leonina) with newborn pup on the beach in Stromness Bay, South Georgia Island
Female southern elephant seal (Mirounga leonina) with newborn pup on the beach in Stromness Bay, South Georgia Island
Female southern elephant seal (Mirounga leonina) with newborn pup on the beach in Stromness Bay, South Georgia Island
Female southern elephant seal (Mirounga leonina) with newborn pup on the beach in Stromness Bay, South Georgia Island
Yellow Crowned Night Heron (Nyctanassa Violacea), wading bird of the Americas that feeds on crustacea, Bermuda, Atlantic
Maremmana cow, Province of Grosseto, Maremma, Tuscany, Italy, Europe
Rainbow Parrotfish swimming in the Carribean Sea.
Slender mongoose (Galerella sanguinea), Kgalagadi Transfrontier Park, encompassing the former Kalahari Gemsbok National Park, South Africa, Africa
Bigeye Trevally (Caranx sexfasciatus), schooling in Cabo Pulmo National Marine Park, Baja California Sur, Mexico, North America