Humpback whales (Megaptera novaeangliae) mother and calf underwater. Hawaii, USA.

mammal mammals cetacean cetacea cetaceans humpback whale hump back hump back megaptera novaeangliae whale whales warm blooded rorqual balaenopterid balaenoptera nobody two mammals couple pair adult young mother calf calves parent protective juvenile hawaii usa america pacific ocean swimming blue waters underwater