In this lively and accessible book an internationally known scientist proposes a scenario that explains why, in the great extinction 65 million years ago, certain groups of animals such as the dinosaurs were extinguished while others survived.

"...[T]his book offers a compelling and provocative theory for the mass extinction of most life on earth that occurred 65 million years ago....Appealing and accessible to a general audience, but also an indispensible reference for students of science."—Southeastern Naturalist