Whales Dolphins And Porpoises Of The Eastern North Pacific And Adjacent Arctic Waters A Guide To Their Identification

Profusely illustrated layman's guide to over 40 species: blue whale, bottlenose dolphin, Dall's porpoise, many more. Physical description, range, markings. 563 black-and-white photographs. 17 drawings.

The field guide is designed to assist the layman in identifying the whales, dolphins, and porpoises he sees in the eastern North Pacific, including all the area north of the equator and east of 180 degrees W longitude. The animals described are grouped not by scientific relationships but by simularities in appearance in the field. Photographs of the animals in their natural environment are the main aids to identification. (Author).