A new edition of the clearest, most authoritative guide to whales, dolphins and porpoises you will find. From the Common Dolphin to the Killer Whale, discover the world's cetaceans. Over 900 incredible photos, annotations and detailed descriptions highlighting chief characteristics and distinguishing marks will help you to identify different whale, dolphin or porpoise species quickly and easily. Covers everything, from how to find them and where to look, to how to tell one species from another and interpret their different behaviours. Perfect for nature lovers and pocket-sized so you can take it anywhere.