A three-part scientific work based on a study conducted by scientists from the Australian Museum in PNG, Irian Jaya and Australia. Contains contributions from a range of people including biologists, curators and those who live with the tree kangaroos. Part one considers a brief history of the animal and people who co-share the environment; Part two looks at tree kangaroos evolution, distribution and taxonomy; Part three is about the biology of the animal. Colour plates accompany part two with colour illustrations and diagrams in parts one and three. Includes appendices, biographical notes, references and an index. Illustrations are by Peter Schouten.