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A Caribbean reef octopus (Octopus briareus) explores the seafloor of a shallow reef off the coast of Belize. This intelligent cephalpod ranges throughout the Caribbean feeding on lobster, crab, and small fish.

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 shallow coral reef thrives in Wakatobi National Park, Indonesia. This remote region is known for its incredible marine biodiversity and gorgeous reefs.

A banded sea snake (Laticauda colubrina) swims at the surface in Wakatobi National Park, Indonesia. This is one of the most venomous snakes in the world.

A female ribbon eel (Rhinomuraena quaesita) yawns as it lives on a sandy slope 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 predatory stonefish (Synanceia verrucosa) lies camouflaged in the sandy seafloor of Komodo National Park, Indonesia. This is the most venomous fish on Earth but uses its venom only for defensive purposes.

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 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.

Symbiotic anemones cover the shell of a hermit crab, Dardanus pedunculatus, 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, 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 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 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.

Adult black-browed albatross (Thalassarche melanophrys), in flight returning to nesting site on West Point Island, Falklands, South America

Adult southern rockhopper penguins (Eudyptes chrysocome), at breeding colony on West Point Island, Falklands, South America

Adult king penguins (Aptenodytes patagonicus) amongst chicks at breeding colony at Gold Harbour, South Georgia Island, Polar Regions

Antarctic tern (Sterna vittata), on the wreck of the Guvernoren in the Enterprise Islands, Antarctica, Southern Ocean, Polar Regions

Antarctic tern (Sterna vittata), on the wreck of the Guvernoren in the Enterprise Islands, Antarctica, Southern Ocean, Polar Regions

Brown capuchin monkey (Cebus apella) (Sapajus apella) on tree, Tambopata National Reserve, Puerto Maldonado, Tambopata Province, Madre de Dios, Peru, South America

Brown capuchin monkey (Cebus apella) (Sapajus apella) on tree, Tambopata National Reserve, Puerto Maldonado, Tambopata Province, Madre de Dios, Peru, South America

Tourists on excursion over Lake Sandoval against green trees, Tambopata National Reserve, Puerto Maldonado, Madre de Dios, Peru, South America

Adelie penguin (Pygoscelis adeliae), leaping into the sea at Booth Island, Antarctica, Polar Regions

Adelie penguin (Pygoscelis adeliae), leaping into the sea at Booth Island, Antarctica, Polar Regions

Female southern elephant seal (Mirounga leonina) showing slight aggression at Moltke Harbor on South Georgia Island, Polar Regions

Landscape view of a river and mountain in the background covered in snow during winter, Italy, Europe

Weddell Seal (Leptonychotes weddellii), hauled out on ice at Half Moon Island, Antarctica, Southern Ocean, Polar Regions

Southern right whale (Eubalaena australis) mother and calf near whale watching boat in Puerto Pyramides, Argentina, South America

Southern right whale (Eubalaena australis) adult female lifting both her head and flukes out of the water in Argentina, South America

Adult Magellanic penguin (Spheniscus magellanicus) at a breeding site on Peninsula Valdez, Patagonia, Argentina, South America

An adult great blue heron (Ardea herodias) perched beside a river in Misty Fjords National Monument, United States of America, North America

View of snow-covered Half Moon Island in the South Shetland Group, Antarctica, Southern Ocean, Polar Regions

Adult kelp gull (Larus dominicanus), nesting on lichen covered rocks on Half Moon Island in Antarctica, Southern Ocean, Polar Regions

Adult gentoo penguin (Pygoscelis papua), feeding chicks at Brown Bluff near the Antarctic Peninsula, Southern Ocean, Polar Regions

A pod of killer whales (Orcinus orca) surfacing in Chatham Strait, Southeast Alaska, United States of America, Pacific Ocean, North America

A close up view of a beetle on hogweed (Heracleum spp) found in the Solovetsky Islands, Arkhangelsk Oblast, White Sea, Russia, Arctic, Europe

Chinstrap penguins (Pygoscelis antarctica), at breeding colony at Half Moon Island, Antarctica, Southern Ocean, Polar Regions

Adult female common eider ducks (Somateria mollissima) swimming with ducklings of Edgeoya in Svalbard, Norway, Arctic, Europe

Lava lizard (Microlophus spp) in the Galapagos Islands Archipelago, UNESCO World Heritage Site, Ecuador, South America

Wild Galapagos giant tortoise (Geochelone elephantopus) at Urbina Bay, Isabela Island, Galapagos Islands, UNESCO World Heritage Site, Ecuador, South America

View of boat being built in a boatyard in the port town of Puerto Baquerizo Moreno, San Cristobal Island, Galapagos Islands, UNESCO World Heritage Site, Ecuador, South America

Lava lizard (Microlophus spp) in the Galapagos Island Archipelago, UNESCO World Heritage Site, Ecuador, South America

Greater flamingos (Phoenicopterus ruber) foraging for small pink shrimp in saltwater lagoon in the Galapagos Islands, UNESCO World Heritage Site, Ecuador, South America

Greater flamingo (Phoenicopterus ruber) in flight over saltwater lagoon in the Galapagos Islands, UNESCO World Heritage Site, Ecuador, South America

Macro photograph of a spider (Order Araneae) in the Galapagos Island Archipelago, UNESCO World Heritage Site, Ecuador, South America

Macro photograph of a spider (Order Araneae) in the Galapagos Island Archipelago, UNESCO World Heritage Site, Ecuador, South America

Young Galapagos sea lion (Zalophus wollebaeki) underwater in the Galapagos Island Archipelago, UNESCO World Heritage Site, Ecuador, South America

Young Galapagos sea lions (Zalophus wollebaeki) at play underwater in the Galapagos Island Archipelago, UNESCO World Heritage Site, Ecuador, South America

Highland cow with its distinctive long hair and horns, a hardy rustic beef breed that has been exported all over the world, Duntulm, Trotternish Peninsula, Skye, Inner Hebrides, Scotland, United Kingdom, Europe

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 curious young polar bear (Ursus maritimus) approaches the National Geographic Explorer in the Svalbard Archipelago, Norway, Arctic, Europe

Science center, Ilulissat Icefjord, UNESCO World Heritage Site, Western Greenland, Denmark, Polar Regions

Playa La Barca, Cabo San Antonio, Guanahacabibes Peninsula National Park and Biosphere Reserve, Pinar del Rio, Cuba, West Indies, Caribbean, Central America

Adult gentoo penguin (Pygoscelis papua), porpoising for swimming speed near the Antarctic Peninsula, Southern Ocean, Polar Regions

Herd of goats gathered in front of a Bedouin camp near Wadi Dana and Araba Valley, Dana Biosphere Reserve, Jordan, Middle East

Adult barred mudskipper (Periophthalmus argentitineatus), at night on the Volivoli Resort grounds on Viti Levu, Fiji, South Pacific, Pacific

Jungle myna (Acridotheres fuscus), looking for insects at 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

Free wild elephant waiting for gift from travellers on the edge of the road near Lunugamvehera National Park, Sri Lanka, Indian subcontinent, South Asia

Free wild elephant waiting for gift from travellers on the edge of the road near Lunugamvehera National Park, Sri Lanka, Indian subcontinent, South Asia

Mule Deer Doe (Odocoileus hemionus) in the summer forest, Kananaskis, Alberta, Canada, North America

Sun rising over the Zapata swamplands, Matanzas Province, Cuba, West Indies, Caribbean, Central America

Green Sea Turtle (Chelonia mydas) nesting site at night on Long Beach on Ascension Island, Tropical Atlantic Ocean, South Atlantic Ocean

Flying fish from the family Exocoetidae take flight as the ship flushes them just off Ascension Island in the southern tropical Atlantic Ocean, South Atlantic Ocean

Caspian Terns (Hydroprogne caspia) at breeding colony on Ile des Oiseaux in the Parc National du Delta du Saloum, UNESCO World Heritage Site, Senegal, West Africa, Africa

Adult South Georgia Pipit (Anthus antarcticus) feeding at low tide on Prion Island, Bay of Isles, South Georgia, Polar Regions

King penguin (Aptenodytes patagonicus) breeding and nesting colony at St. Andrews Bay on South Georgia, Southern Ocean, Polar Regions

King penguin (Aptenodytes patagonicus) detail at breeding and nesting colony at St. Andrews Bay on South Georgia, Southern Ocean, Polar Regions

King penguin (Aptenodytes patagonicus) adult feeding chick at breeding and nesting colony at St. Andrews Bay on South Georgia, Southern Ocean, Polar Regions

King penguin (Aptenodytes patagonicus) adult and chick at breeding and nesting colony at Salisbury Plain, South Georgia, Polar Regions