Description Northern right whale dolphins. The lack of a dorsal fin makes identification of this species much easier. Washington. 2005.
Date 24 September 2010, 10:02
Source NOAA Photo Library: anim1749 http://www.flickr.com/photos/noaaphotolib/5019927293/
Author Credit: NOAA NMFS.
Source: https://commons.wikimedia.org/wiki/File:Anim1749_-_Flickr_-_NOAA_Photo_Library.jpg

The northern right whale dolphin (Lissodelphis borealis) is a small and slender species of marine mammal found in the North Pacific Ocean. It travels in groups of up to 2000, often with other cetaceans, in deep waters of the North Pacific. The dolphin is one of two species of right whale dolphins. The other, southern right whale dolphin (Lissodelphis peronii), is found in cooler oceans of the Southern Hemisphere. Order: Artiodactyla, Infraorder: Cetacea, Family: Delphinidae, Genus: Lissodelphis, Species: Lissodelphis borealis Peale, 1848.