In the tradition of Jared Diamond's Guns, Germs, and Steel, The Eternal Frontier is ecological history on a monumental scale. One of the world's foremost paleontologists, Tim Flannery has undertaken a task of enormous ambition and accomplished something never before attempted: a history of the formation of North America as we know it today. Starting with an asteroid strike 65 million years ago, Flannery shows how the continent came into being and was then transformed into our modern landscape. He describes the development of North America's deciduous forests and other flora and tracks the immigration and emigration of various animals to and from Europe, Asia, and South America, showing how plant and animal species have either adapted or become extinct.