Polar Bear( Ursus maritimus ) walking along a barrier island outside Kaktovik, Every fall, polar bears (Ursus maritimus) gather near Kaktovik on the northern edge of ANWR, Barter Island, Arctic National Wildlife Refuge, Alaska

polar bear (ursus maritimus) global warming natural area sky autumn adult alone walk profile shot overview reflection carnivore (diet) arctic cold sea ursus north american protected areas (united states) vulnerable (iucn) vu pebble shore cites appendix 2 september arctic national wildlife refuge water surface beaufort sea nobody national wildlife refuge bear carnivoran mammal wild animal climate change hazard environment naturalness area meteorological phenomenon atmosphere temperate season seasons stage of development individual enumeration gait locomotion motion shot light effect diet pattern species continent sea marine area ursidae carnivora mammalia vertebrata united states of america north america america iucn red list of threatened species strand convention on international trade in endangered species of wild month of year alaska pacific states western united states water (matter) matter (substance) arctic ocean world sea and ocean environment protection environment management biodiversity management polar bears (ursus maritimus) greenhouse effects heat earth climatic effects climatic effect heats earth global reheatings greenhouse effect nature natural areas ecosystem ecosystems skies fall (season) adults single lonely only solo one lone walking profile sights profile sight profile shots profile view profile views side view overviews global sight global sights full length reflections mirror image reflected reflecting carnivorous animal carnivores (diet) carnivorous animals meat eating animal meat eating animals cold seas cold ocean cold oceans north american protected area (united states) north american national parks (united states) vulnerable species pebble shores pebbles shores water surfaces watersurface watersurfaces with nobody ursus maritimus