Two mother polar bears (Ursus maritimus) with cubs of the year watch a male bear feeding on a fin whale carcass in Svalbard, Norway

polar bear ursus maritimus fin whale carcass svalbard cubs wildlife feeding marine mammal ice mother male northern habitat animal behavior arctic cub natural survival nature ecosystem predator carnivore floes observation cold environment family group foraging interaction conservation tundra winter community coastal biodiversity welfare large mammals remote location north wild animals