An adult polar bear (Ursus maritimus) guarding a caribou kill in Holmabukta in the Svalbard Archipelago, Norway

polar bear caribou kill holmabukta svalbard ursus maritimus wildlife arctic nature predator carnivore snow rocks dominance marine mammal habitat ecosystem hunting region norwegian archipelago tundra animal behavior survival natural environment food chain climate cold conservation large mammals balance northern white scavenging remote location wilderness wild habitats seasons change outdoor life