Contains superb photographs of every species of marine mammal for accurate identification Authors possess nearly 80 years of collective experience with almost all of the species and distinctive geographic forms described in the guide Provides the most detailed and anatomically accurate illustrations currently available, including more than 750 new illustrations Special emphasis is placed on the identification of species in "problem groups," such as the beaked whales, long-beaked oceanic dolphins, and southern fur seals Includes a detailed list of sources for more information Contains updated taxonomy including four new species.
Data pubblicazione
01/08/2015