<P>From kangaroos and koalas to the giant <I>Diprotodon</I> and bizarre "thingodontans," prehistoric mammals evolved within the changing and sometimes harsh environments of Australia. As part of Gondwana, Australia was the first landmass to be isolated from the supercontinent Pangaea. In <I>Prehistoric Mammals of Australia and New Guinea,</I> four respected paleontologists present a history of the development of modern mammals from the unique evolutionary environment of Australia and New Guinea. The authors describe both what is known about prehistoric Australian mammals and what can be reconstructed from the fossil evidence about their appearance and behaviors.</P><P>This accessible reference work offers facts about how each mammal got its name and provides a description of how the fossil mammal resembles its modern descendants. Over 200 four-color illustrations enhance the text, which describes the age, diet, and habitat of these extinct mammals. The authors also detail how each mammal evolved and is now classified. Diagrams showing skeletal features and tooth structure and a glossary of technical terms are also included.</P>