When Life Nearly Died: The Greatest Mass Extinction of All Time

"The focus is the most severe mass extinction known in earth's history….The science on which the book is based is up-to-date, thorough, and balanced. Highly recommended."—Choice

Today it is common knowledge that the dinosaurs were wiped out by a meteorite impact 65 million years ago that killed half of all species then living. Far less known is a much greater catastrophe that took place at the end of the Permian period 251 million years ago: ninety percent of life was destro…