Humpback Whale calf (Megaptera novaeangliae) breaching in Chatham Strait, Southeast Alaska, USA.

humpback whale cetacean mammal rorqual baleen mysticete southeast alaska pacific megaptera novaeangliae mammals oceanic north sea us united states america american north america north american baby babies calves young juvenile juveniles offspring surface breach balaenoptera action movement motion pectoral fin fins alaskan