Northern Right Whale Dolphin
Has a streamlined body with a short beak and a sloping forehead.
Deep, cold temperate waters of the North Pacific Ocean, Mexico to Russia
Migrate south and inshore in winter months, north and offshore in summer months. That coincides with the occurence of squid.
Social system/Group size
The average group sizes are 100 in the eastern Pacific and 200 in the western Pacific; they commonly mix with other marine mammals (Pacific white-sided dolphins, Risso's dolphins, pilot whales).
They are hunted in Japan for meat and oil. Entanglement in fishing gear is another threat.
They are the only species of dolphin in the North Pacific Ocean without a dorsal fin.