"When I first learned of this discovery, I thought it the most astonishing in any field on science within the last decade" -Jared Diamond, author of Guns, Germs, and Steel, in Science magazine"One of the very most astonishing discoveries that I've seen in my life." -Tim Flannery, author of The Weather Makers and The Eternal Frontier"This well-written, entertaining book is both scholarly and accessible to the general public." -American Scientist"Highly recommended for all public and academic libraries." -Library Journal