polar bear cubs jumping over pack ice, svalbard archipelago, barents sea, norway

europe european arctic ocean norway svalbard archipelago spitsbergen barents sea olgastrait nature fauna zoology wildlife animals wild mammals animal behaviour polar bear ursus maritimus ursidae family white carnivorous carnivora predator predators cold environment pack ice snow icy frozen global warming melting vulnerable species floe day daylight daytime people absence colors colours colorful colourful outdoors outdoor outside exterior chase chasing hunt hunting care taking two cubs run running jump jumping swim swimming horizontal juming