Dall’s porpoise  (Phocoenoides dalli)

Dall's porpoise at surface of the sea

© Todd Pusser / naturepl.com

Dall's porpoise at ocean surface

© Todd Pusser / naturepl.com

Pod of Dall's porpoises surfacing

© Danny Frank / SplashdownDirect.com

Dall's porpoise swimming

© Joe McDonald/AA / www.osfimages.com

Dall's porpoise swimming

© Joe McDonald / Animals Animals

Dall's porpoise bow riding

© Michael Nolan / SplashdownDirect.com

Orca attacking a female Dall's porpoise

© Michael Nolan / SplashdownDirect.com

Pod of Dall's porpoises swimming towards the coastline

© Mark Deeble & Victoria Stone / www.osfimages.com

Dall's porpoise being removed from a driftnet

© Thomas Jefferson / SeaPics.com