combing steering, emitting and evaluating sound is how the narwhal moves around. The coordination of the tail and the upturned flippers accomplishes the steering. emitting sound is accomplished by the combination of the vocalizations and processing by one head a possibly one tusk. The narwhal has no dorsal fin but hat a irregular ridge along the posterier end of the back.
the flipper and tail
flippers are small and rounded, and the tail flukes are rounded and semi-circular. the tip of the flipper is curved up for movement.