Adult humpback whales (Megaptera novaeangliae) co-operatively bubble-net feeding in Southeast Alaska, United States of America

humpback whales cooperative behavior southeast alaska marine wildlife summer feeding ocean seabirds megaptera novaeangliae natural aquatic life frenzy north pacific observation sea conservation animal interaction large mammals underwater krill surface coastal ecosystem biodiversity group foraging technique nature wild animals habitat migration biology ecological significance photographic oceanography whale watching activity strategy