Koalas are known as the sleepy tree-dwellers of Australia, but there is much more to discover about these unique marsupials. This high-school nonfiction title gives readers an in-depth look at the social structure, specialized eucalyptus diet, impressive anatomy, and threatened habitats of these iconic, tree-climbing mammals. Also featured are critical species conservation efforts and the koala's complex relationship with humans throughout history, including habitat loss threats and wildlife protection programs. Captivating photos and intriguing facts are accompanied by detailed sidebars, a comprehensive glossary, selected bibliography, relevant websites, and an index.