Adult Dall's Porpoise (Phocoenoides dalli) bow riding in Southeast Alaska, USA. Note: Dall's porpoise is one of the fastest cetaceans in the world!

dalls porpoise phocoenoides dalli southeast alaska cetacean mammal odontocete phocoenidae adult dalls porpoise phocoenoides dalli surfacing southeast alaska usa fastest cetaceans one animal lone bow riding bow riding