Whales and porpoises have captivated humans since the days of antiquity. If anything, this fascination has only grown in our times. Encounters with whales and porpoises in their natural environment rank among the most exciting and memorable experiences that modern tourism has to offer. This book provides the reader with practical aids for the identification of all 79 cetacean species and observation of these gentle giants and playful denisens of the ocean. Entertaining feature stories describe their habits and unique capabilities in vivid detail.