Adult brown bears (Ursus arctos) and wolf (Canis lupus) feeding on humpback whale carcass in Glacier Bay National Park, Alaska, United States of America

brown bear wolf humpback whale carcass alaska wildlife scavenging feeding animal behavior coastal rocky shore predators nature ecosystem marine mammal grey ursus arctos canis lupus food chain biodiversity natural habitat interaction foraging sea life carnivores ecology north america outdoor conservation wild animals resources wilderness environment fishing tourism sustainable observation landscape