What distinguishes this bird from others is its unique niche. Its adaptations make it totally dependent on pine trees in an open forest. This ecosystem--that of the loblolly pine tree forest--is the bird's onlly habitat. But these southeastern pine trees are valuable natural resources. Having withstood the ravages of nature for thousands of years, it is now entirely possible that the woodpecker will be lost because of a combination of "benign neglect" and commercial interests

Kip Thorne, along with fellow theorists Stephen Hawking and Roger Penrose, a cadre of Russians, and earlier scientists such as Oppenheimer, Wheeler and Chandrasekhar, has been in the thick of the quest to secure answers. In this masterfully written and brilliantly informed work of scientific history and explanation, Dr. Thorne, the Feynman Professor of Theoretical Physics at Caltech, leads his readers through an elegant, always human, tapestry of interlocking themes, coming finally to a uniquely informed answer to the great question: what principles control our universe and why do physicists...