Adult brown bear (Ursus arctos) feeding on humpback whale carcass in Glacier Bay National Park, Alaska, United States of America

brown bear ursus arctos humpback whale carcass glacier bay national park alaska feeding behavior marine life wildlife carnivore habitat coastal environment summer nature ecosystem animal foraging predator ocean shoreline scavenger observation native outdoor adventure wilderness conservation mammals biodiversity terrestrial animals algae rocky shore water frenzy food chain encounter natural history