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

humpback whale southeast alaska marine life cooperative hunting ocean wildlife megaptera novaeangliae feeding behavior underwater natural habitat mammal cetacean fish ecosystem alaskan waters biology nature group surface activity aquatic pacific large mammals animal environment watching conservation biodiversity north america sea predator prey strategy fauna humpbacks social water patterns frenzy corralling