This book fully documents the natural history of "Sirenia", the order of aquatic mammals including manatees of the Caribbean, West Africa, and the Amazon, as well as the Indo-Pacific dugong. As these ill-fated creatures become increasingly extinct due to hunting, boating injuries and other mishaps, "Manatees and Dugongs" presents a study of the natural history and habitat of sirena and highlights the urgent need for conservation. The book begins with a discussion of how manatees evolved and their relationship with man throughout history. Included is an account of how the now-extinct Stellar's sea cow was discovered and killed off by fur traders in the 18th century in a span of just 27 years. The volume then provides an up-to-date overview of the different "Sirenia" species, with detailed information on their natural habitat, anatomy and characteristics, feeding habits, present and past population, geographical location, behaviour and relationships, range and distribution, current research and study. Information on current international conservation efforts is also given stressing the need to conserve habitat and outlining specific plans that are under way.