Evolution

Book excerpt: Provides a concise and engaging summary of modern evolutionary theory, for students and general readers with little or no formal training in science. Explains variations within species, heredity, genetics and variation, and mutation, and discusses natural selection theory, the origin of species, and speciation in the Galapagos Islands. Examines the origin and early evolution of life and of humanity, and discusses the intersection of science and politics. Includes a "who's who" of key figures with bandw photos and portraits, plus a glossary. The first edition was published in 1978. This second edition contains new chapters on neural and gene evolution, and emphasis on molecular evolution. The author was retired from the paleontology department of The Natural History Museum in London. Annotation copyrighted by Book News, Inc., Portland, OR