Young Orca (Orcinus orca) tail-slapping in Chatham Strait, southeast Alaska, USA.

orcinus orca killer whale delphinidae cetacean mammal odontocete southeast alaska pacific ocean mammals cetacea cetaceans odontoceti tooth toothed ocean oceanic sea surface us united states america american north america north american swimming alaskan offspring calves calf baby babies juvenile juveniles action motion movement tail tails slap slapping tail slap tail slapping behaviour