Grief can sometimes feel like being caught in the jaws of a great white shark. J.C., who goes by the nickname Sharky, has been having a hard time ever since his

Suppose you knew that, though you yourself would live your life to its natural end, the earth and all its inhabitants would be destroyed thirty days after your

ONE OF THE NEW YORK TIMES BOOK REVIEW'S 10 BEST BOOKS OF THE YEAR A major book about the future of the world, blending intellectual and natural history and fiel

Originally published in hardcover: Oxford; New York: Oxford Universtiy Press, 2009.

An assessment of human evolution that theorizes that many more species of humans than previously thought have existed during the six million year history of the