With coverage on all the marine mammals of the world, authors Jefferson, Webber, and Pitman have created a user-friendly guide to identify marine mammals alive in nature (at sea or on the beach), dead specimens 'in hand', and also to identify marine mammals based on features of the skull. This handy guide provides detailed descriptions of diagnostic features, illustrations of external appearance, photographs, dichotomous keys, and more. Full colour illustrations and photographs of every living marine mammal species are incorporated, as well as comprehensible maps showing a range of information.
I recommend this comprehensive and up-to-date guide to every budding as well as serious marine mammalogist. Bernd Wursig, Ph.D Texas A&M University