Humpback whale (Megaptera novaeangliae) cow and calf, underwater, Tonga, South Pacific

jorobada mammal mammals cetacea cetaceans balaenoptera baleen marine ocean oceanic sea ballena mysticete balaeopteridae rorqual adult adults female females mother mothers calf calves young juvenile juveniles offspring fins blue deep australasia parent parents parental care family families caring baby babies sealife sea life majestic underwater family group blue waters protection protect togetherness dependent vulnerable