Two polar bears (Ursus maritimus) quarreling and threatening on frozen tundra at sunset, Churchill, Manitoba, Canada.

United States, Alaska, Arctic National Wildlife Refuge, Kaktovik, Polar Bear( Ursus maritimus ), in the sunset along a barrier island outside Kaktovik, Alaska.

glacier Brasvellbreen and Arctic Sea in sunset light, Nordaustlandet, Svalbard

United States, Alaska, Arctic National Wildlife Refuge, Kaktovik, Polar Bear( Ursus maritimus ), at sunset along a barrier island outside Kaktovik, Alaska.

Tundra lanscape at sunset in winter Wapusk National Park, Churchill, Manitoba, Canada

North American, Canada, Manitoba, Churchill, Cape Churchill Polar Bear walking the frozen tundra

Polar bear tracks crossing fiord Ny Alesund to Longyearben traverse Spitsbergen Island Svalbard Norwegian Arctic

United States, Alaska, Arctic National Wildlife Refuge, Kaktovik, Polar Bear( Ursus maritimus), yearling running along a barrier island outside Kaktovik, Every fall, polar bears (Ursus maritimus) gather near Kaktovik on the northern edge of ANWR, Arctic Alaska,.

Adult Polar Bear Ursus maritimus following in tracks on open tundra outside Churchill, Manitoba, Canada

Sunset over farmland, Iceland.

United States, Alaska, Arctic National Wildlife Refuge, Kaktovik, Polar Bear( Ursus maritimus), adult female, along a barrier island outside Kaktovik, Every fall, polar bears (Ursus maritimus) gather near Kaktovik on the northern edge of ANWR, Arctic Alaska, Fall.

Sunset, Videy Island, Reykjavik, Iceland

Polar bears on tundra in Arctic sunset.