In a controversial new book, Darwin compiles years of observations and suggests that—rather than being created directly by God—one species may change, or evolve, into another species over time. He begins simply enough, by pointing out that presumably the many varieties of domesticated birds, or dogs, descended from a single wild species. Such varieties, he proposes, are species in the process of formation. How does this happen? Simple, according to the author: It's the universal struggle for life. He also suggests that people, like animals, may have evolved over time. This book is sure to be discussed for years to come. 1859.

Additional information can be found at http://www.bbc.co.uk/education/darwin/origin/.

Available from Science News Books. Bantam, 432 p., paperback, $5.95.

From Science News, Vol. 156, No. 25 & 26, December 18 & 25, 1999, p. ii. Copyright © 1999, Science Service.