Imagine if koalas, gorillas, or alligators were to suddenly disappear from Earth. Sadly, this is exactly what may happen. Many species of animals are w listed as being either threatened or endangered. This means that they may soon become extinct. Each book in the Endangered and Threatened Animals series examines the characteristics and habitat of a species at risk of extinction. The author also explains what people are doing to save these animals. The Report Links take the reader to the best Web sites, source documents, and photos related to the study and survival of each species. These books contain a message about the Endangered and Threatened Wildlife list, an animal facts page, chapter tes, a further reading list, and an index.In five informative chapters, Carl R. Green examines the characteristics and different habitats of the tiger. In The Tiger, Green explains why the Bengal, Siberian, and Sumatran tigers are facing extinction and what precautions are being taken to help these animals.