Amazon.com description: Product Description: This book sets out to do for evolution what Bertrand Russell's The Problems of Philosophy did for that subject. Its authors is a leading evolutionary biologist, and unlike many popular books on evolution, it isn't written to prove a particular theory. Instead it reviews the key problems and the main answers to them, in a balanced account which is also authoritative. It will be an invaluable guide to all students of biology, but the clarity of the arguments and the level of writing make it an excellent introduction for general readers as well. Among the concepts and controversies discussed are the nature of heredity, evolution, natural selection, and the existences of species.