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Adult brown bear (Ursus arctos) foraging for salmon at the Brooks River, Katmai National Park, Alaska, United States of America

Float planes used to fly guests in to the Brooks Lodge and campground in Katmai National Park near Bristol Bay, Alaska, United States of America

Adult brown bear (Ursus arctos) foraging for salmon at the Brooks River, Katmai National Park, Alaska, United States of America

Adult brown bears (Ursus arctos) foraging for salmon at the Brooks River, Katmai National Park, Alaska, United States of America

Adult brown bears (Ursus arctos) foraging for salmon at the Brooks River, Katmai National Park, Alaska, United States of America

Adult brown bear (Ursus arctos) foraging for salmon at the Brooks River, Katmai National Park, Alaska, United States of America

Adult brown bear (Ursus arctos) foraging for salmon at the Brooks River, Katmai National Park, Alaska, United States of America

Adult brown bear (Ursus arctos) foraging for salmon at the Brooks River, Katmai National Park, Alaska, United States of America

Adult brown bear (Ursus arctos) foraging for salmon at the Brooks River, Katmai National Park, Alaska, United States of America

Adult brown bear (Ursus arctos) foraging for salmon at the Brooks River, Katmai National Park, Alaska, United States of America

Adult brown bear (Ursus arctos) foraging for salmon at the Brooks River, Katmai National Park, Alaska, United States of America

Adult brown bear (Ursus arctos) foraging for salmon at the Brooks River, Katmai National Park, Alaska, United States of America

Young brown bears (Ursus arctos) foraging for salmon at the Brooks River, Katmai National Park, Alaska, United States of America

Adult brown bears (Ursus arctos) foraging for salmon at the Brooks River, Katmai National Park, Alaska, United States of America

View from Park Service platform where adult brown bears (Ursus arctos) forage for salmon, Katmai National Park, Alaska, United States of America

View from Park Service platform where adult brown bears (Ursus arctos) forage for salmon, Katmai National Park, Alaska, United States of America

Adult brown bear (Ursus arctos) foraging for salmon at the Brooks River, Katmai National Park, Alaska, United States of America

Adult brown bear (Ursus arctos) foraging for salmon at the Brooks River, Katmai National Park, Alaska, United States of America

Adult brown bears (Ursus arctos) foraging for salmon at the Brooks River, Katmai National Park, Alaska, United States of America

View from Park Service platform where adult brown bears (Ursus arctos) forage for salmon, Katmai National Park, Alaska, United States of America

Adult brown bears (Ursus arctos) foraging for salmon at the Brooks River, Katmai National Park, Alaska, United States of America

Adult brown bear sow (Ursus arctos) watching human activities at the Brooks River, Katmai National Park, Alaska, United States of America

Alaskan brown bears (Ursus arctos) sow and cubs foraging for salmon in the Brooks River, Katmai National Park, Alaska, United States of America

Young brown bear (Ursus arctos) cubs watching mom hunt for salmon in the Brooks River, Katmai National Park, Alaska, United States of America

Caldera de Taburiente National Park, UNESCO Biosphere Site, La Palma, Canary Islands, Spain, Atlantic, Europe

View point along the National tourist route on the west coast.Senja island.County of Troms, Norway, Northern Europe

Misty Mount William, glaciers and icebergs, sunny weather, Anvers Island, from Bismarck Strait, Antarctic Peninsula, Antarctica, Polar Regions

Whale blow (spout) and icy mountains, low lying mist, evening sun, Bransfield Strait, off South Shetland Islands, Antarctica, Polar Regions

Glacier covered mountains of Greenwich Island, from the sea, bright yet misty weather, South Shetland Islands, Antarctica, Polar Regions

Pinnacle rocks, glaciers, mountains of Greenwich Island, from the sea, bright, misty weather, South Shetland Islands, Antarctica, Polar Regions

Low lying clouds over the mountains and blue glaciers of Paradise Bay, Antarctic Peninsula, Antarctica, Polar Regions

Baked white clay creates surreal pathway in the desert near the infamous Skeleton Coast, Namibia, Africa

Aerial of the massive glacier of Alexandra Land, Franz Josef Land archipelago, Arkhangelsk Oblast, Arctic, Russia, Europe

View of Lee Mountain, Courthouse Butte, and Castle Rock, from the secret trail on the east side of Cathedral Rock in Sedona, Arizona, United States of America, North America

Reflections of Courthouse Butte in the Slick Rock Bowls along the Llama Trail in Sedona, Arizona, United States of America, North America

Panorama of Walnut Canyon, once inhabited by the Sinagua People, located east of Flagstaff, Arizona, United States of America, North America

Morning sunlight and mist, Reflection Lake, Mount Rainier National Park, Washington State, United States of America, North America

Hiking in the Baron Creek valley, Sawtooth Mountains, Sawtooth Wilderness, Sawtooth National Recreation Area, Rocky Mountains, Idaho, United States of America, North America

Sawtooth Mountains, Sawtooth Wilderness, Sawtooth National Recreation Area, Rocky Mountains, Idaho, United States of America, North America

Local woman standing on a rock in beautiful mountain scenery along the road from Massawa to Asmara, Eritrea, Africa

Sandstone wave, Paria Canyon, Vermillion Cliffs Wilderness, Arizona, United States of America (U.S.A.), North America

View from Mount Ossa, 1617m, Tasmania's highest mountain on the Overland Track, Cradle Mountain Lake St. Clair National Park, part of Tasmanian Wilderness, UNESCO World Heritage Site, Tasmania, Australia, Pacific

Ruins of the farmyard adjoining the Clifden Castle, ruined manor house near Clifden, Connemara, County Galway, Connacht, Republic of Ireland

Renovated Karapet church, 11th century, Tsakhats Kar Monastery, near Yeghegnadzor, Vayots Dzor province, Armenia, Eurasia

Cliffs viewed from Dun Aengus, prehistoric hill fort, Inishmore, largest of the Aran Islands, Galway Bay, County Galway, Connacht, Republic of Ireland

Dawn over Baron Lake, Sawtooth Mountains, Sawtooth Wilderness, Sawtooth National Recreation Area, Rocky Mountains, Idaho, United States of America, North America

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.

Delicate corals grow on a shallow reef near the island of Flores in Indonesia. This beautiful region is known for its spectacular reefs and high marine biodiversity.

A snowflake moray eel (Echidna nebulosa) pokes its head out of a hole in Komodo National Park, Indonesia. This beautiful area harbors extraordinary marine biodiversity and is a popular destination for divers and snorkelers.

A flathead fish camouflages itself in the sandy 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) displays its venomous spines in Komodo National Park, Indonesia. This tropical area in the western Pacific harbors an extraordinary array of marine organisms.

A colorful crinoid clings to a coral reef slope in Komodo National Park, Indonesia. This tropical region in Indonesia is known for its spectacular coral reefs and high marine biodiversity.

A spine-cheeked anemonefish (Premnas biaculeatus) swims among the tentacles of its host anemone in Wakatobi National Park, Indonesia.

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 colorful set of gorgonians, reef-building corals, and other invertebrates grow on a diverse reef in the Caribbean Sea.

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

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 beautiful bouquet of tunicates and cnidarians 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 black manta ray, Mobula alfredi, visits a cleaning station on a reef in Komodo National Park, Indonesia.

View of woodland and Chrysi Ammoudia in background, Thassos, Aegean Sea, Greek Islands, Greece, Europe

Names of fishing boats painted on the rocks in Cross Sound with the Fairweather Mountain Range as backdrop, Alaska, United States of America, North America

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

Glacial iceberg detail from ice calved off the South Sawyer Glacier in Tracy Arm, Southeast Alaska, United States of America, North America

Adult brown bear pair (Ursus arctos) fishing for pink salmon at Pavlof Harbor on Chichagof Island, Southeast Alaska, United States of America, North America

Scenic view of Glacier Bay National Park and Preserve, UNESCO World Heritage Site, Southeast Alaska, Pacific Ocean, United States of America, North America

Harbor seals (Phoca vitulina) hauled out on ice calved from South Sawyer Glacier, Southeast Alaska, United States of America, North America

Mushrooms growing in the Tongass National Forest in southeast Alaska, Pacific Ocean, United States of America, North America

Harbor seal (Phoca vitulina) hauled out on ice calved from South Sawyer Glacier, Southeast Alaska, United States of America, North America

Scenic views of the south Sawyer Glacier in Tracy Arm-Fords Terror Wilderness area in Southeast Alaska, United States of America, North America