Adult Dall's Porpoise (Phocoenoides dalli) surfacing (note characteristic "rooster tail" splash from body) in the San Juan Islands, Washington State, USA.

dalls porpoise phocoenoides dalli cetacea cetacean odontocete dolphin mammal warm blooded toothed air breathing alaska pacific ocean icy strait one alone single solitary individual action movement motion water sea marine oceanic america north northern hemisphere swimming splashing