"This is the story of one of the greatest adventures of twentieth-century science, told by the central figure. Walter Alvarez relates the still-evolving story w

Sixty-five million years ago, a comet or asteroid larger than Mount Everest slammed into the Earth, inducing an explosion equivalent to the detonation of a hund

An illustrated record book of theropod facts and figures--from the biggest to the fastest to the smartest. This compendium features more than 3,000 records, cov

Science and art collaborate to recreate life on Earth more than 200 million years ago