This book introduces young readers to the scientists, conservationists, educators, and others who are committed to the preservation of endangered species around the world. The informed and educational narrative examines numerous threats to animals in the wild, raising awareness of each species, and detailing the extent and urgency of the problem. The book also encourages young animal lovers to take an active role in the preservation of creatures great and small. The author offers a message of hope by telling success stories of animals that are now off the endangered species list."National Geographic Investigates" introduces young people to cutting edge techniques of scientific investigation, the most current discoveries, and the way that those discoveries are interpreted to throw new light on our understanding of ourselves and the world around us. Special features include: map showing major sites discussed in the book, plus locator maps to start each chapter; sidebars explaining the latest technology being used by scientists; a 'Meet the Expert' sidebar presenting an interview with a scientist currently working in the appropriate field; timelines placing research and researchers in historical context and pinpointing the time period for each chapter; and lavish design including photographs, illustrations, and diagrams.