Adult humpback whale (Megaptera novaeangliae), head-lunging in the fjord of Isfjardardjup, Iceland

humpback whale megaptera novaeangliae fjord isfjardardjup iceland marine life aquatic behavior ocean wildlife nature cetacean swimming surfacing mammals endangered species oceanography humback watching natural spectacular display animal blue water sea predator fish habitat conservation ecosystems surface ecological balance biodiversity travel adventure exploration scenery depth ecosystem lovers enthusiasts earth oceans tides