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Colorful 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 beautiful coral reef thrives in the shallows of Alor, Indonesia. This remote region is home to a wide array of marine biodiversity.

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

Soft coral colonies, Sinularia sp., thrive on a reef found among the remote, tropical islands of Raja Ampat, Indonesia.

Bright beams of sunlight descend into the shadows of a blue water mangrove forest in 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.

A well-camouflaged ornate ghost pipefish, Solenostomus paradoxus, hovers over a reef in Komodo National Park, Indonesia.

A colorful soft coral adorns a giant clam, Tridacna sp., growing on a healthy reef in Raja Ampat, Indonesia.

A colorful ornate ghost pipefish, Solenostomus paradoxus, hovers over a coral reef in Komodo National Park, Indonesia.

A barred-fin moray eel, Gymnothorax zonipectus, is found on a coral reef 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 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.

King penguin (Aptenodytes patagonicus) chicks (okum boys) at nesting colony at Salisbury Plain, South Georgia, Polar Regions

Perito Moreno Glacier, UNESCO World Heritage Site, around El Calafate, Santa Cruz province, Patagonia, Argentina, South America

Antarctic shag (Phalacrocorax atriceps bransfieldensis), in flight with nesting material in its beak at Jougla Point, Antarctica, Polar Regions

Drone view of Kok-Moinok Canyon, a clay-sand structure formed on the slopes of arid mountains cut by water streams, Kyrgyzstan, Central Asia, Asia

Kok-Moinok Canyon, a clay-sand structure formed on the slopes of arid mountains cut by water streams, Kyrgyzstan, Central Asia, Asia

Kok-Moinok Canyon, a clay-sand structure formed on the slopes of arid mountains cut by water streams, Kyrgyzstan, Central Asia, Asia

Adult American black bear (Ursus americanus) near Mendenhall Glacier, Southeast Alaska, United States of America, North America

Adult humpback whale (Megaptera novaeangliae) flukes-up dive in Inian Pass, Southeast Alaska, Pacific Ocean, United States of America, North America

Scenic views from Tracy Arm-Fords Terror Wilderness area in Southeast Alaska, United States of America, North America

Icebergs near the Antarctic Peninsula during the summer months, Antarctica, Southern Ocean, Polar Regions

Aerial view of a winding mountain road curves, Kalmak Ashuu Pass, through lush greenery in Kyrgyzstan, Central Asia, Asia

North view of Grand Canyon South Rim Arizona from the top floor of the historic Watchtower, taken through glass window, Grand Canyon, UNESCO World Heritage Site, Arizona, United States of America, North America

The Kiva of the ancient Tusayan Ruins at Grand Canyon South Rim, UNESCO World Heritage Site, Arizona, United States of America, North America

The view of Goring weir and lock from Goring and Streatley Bridge, Goring, Oxfordshire, England, United Kingdom, Europe

Boojum tree (Fouquieria columnaris), just outside Bahia de los Angeles, Baja California, Sea of Cortez, Mexico, North America

Snow-capped peaks and lush valleys at sunset showcased in a stunning landscape, Kyrgyzstan, Central Asia, Asia

Expedition ship The Bremen operating from Ushuaia, Argentina to the Antarctic Peninsula in Antarctica, Polar Regions

Ruined cells of penal colony on Ile Saint-Joseph, Iles du Salut (Islands of Salvation), French Guiana, Overseas department and region of France, French Guiana, South America

Nature Park Valsesia and the Alta Val Strona, close-up off the glacier of Monte Rosa in the Italian Alps, Piedmont, Italy, Europe

Close up of the rugged summit of Dufourspitze, Monte Rosa, against a blue sky, Nature Park Valsesia and the Alta Val Strona, Piedmont, Italian Alps, Italy, Europe

Close up of the rugged summit of Dufourspitze, Monte Rosa, against a blue sky, Nature Park Valsesia and the Alta Val Strona, Piedmont, Italian Alps, Italy, Europe

Hiking path traversing rock plains and rocky mountain top pass area of Colle del Turlo, Vercelli, Piedmont, Italian Alps, Italy, Europe

Trail in the Andes, near Rainbow Mountain, Pitumarca District, Cusco (Cuzco) Region, Peru, South America

Beautiful idyllic hiking trail in the early morning sun light with mountain chain in the background, Monte Rosa, Piedmont, Italian Alps, Italy, Europe

Adult black-legged kittiwakes (Rissa tridactyla) resting on ice in the Svalbard Archipelago, Barents Sea, Norway, Arctic, Europe

A view of the expedition ship Ulla Rinman operating in the Svalbard Archipelago, Norway, Arctic, Europe

Adult Svalbard reindeer (Rangifer tarandus platyrhynchus) grazing on tundra in the Svalbard Archipelago, Norway, Arctic, Europe

Aerial of a little ship floating between the ice below the Eqi glacier, Western Greenland, Denmark, Polar Regions

The Lindblad Expedition ship National Geographic Explorer at Austfonna in the Svalbard Archipelago, Norway, Arctic, Europe

Little boat between the icebergs of the Ilulissat Icefjord, UNESCO World Heritage Site, Western Greenland, Denmark, Polar Regions

Floating icebergs, Ilulissat Icefjord, UNESCO World Heritage Site, Western Greenland, Denmark, Polar Regions

Aerial of the Ilulissat Icefjord, UNESCO World Heritage Site, Western Greenland, Denmark, Polar Regions

Floating icebergs, Ilulissat Icefjord, UNESCO World Heritage Site, Western Greenland, Denmark, Polar Regions

Little boat between the icebergs of the Ilulissat Icefjord, UNESCO World Heritage Site, Western Greenland, Denmark, Polar Regions