Sydney: Kangaroo Press, 1999.. First published under the title The Nature of Hidden Worlds. Photography of fossils by Jim Frazier; Dioramas by Dorothy Dunphy. New edition. ISBN 0 7318 0806 1. 4to, 256 pp, profusely illustrated thoughtout in full colour, glossary, bibliography, in. dex. Original cloth in dustwrapper. Very Good. The book takes readers on 'a journey through time, re-creating the ancient environments and telling us about the animals and plants that lived Australia and New Zealand long, long ago. It traces the evo. lution of living things that, nearly four billion years ago, predetermined the path that evolution would take by creating an oxygenated atmosphere. We see how environmental change has been the driving force of evolution, and how sudden and rapid cha. nges caused extinction.'.