Two young polar bears (Ursus maritimus), feeding side-by-side on a fresh bearded seal kill on Spitsbergen, Svalbard, Norway

polar bears ursus maritimus feeding bearded seal carcass svalbard arctic wildlife nature survival young ice hunting carnivore animal behavior ecosystem food source marine mammal prey siblings winter habitat northern hemisphere ocean snowy landscape instinct predator region conservation natural predation environment frozen img documentary balance kingdom cold climate chain native species