John Timberlake

If you've ever wondered what it would be like to stand in the sunlight on the shores of a Jurassic ocean, or see the gap that became the Mediterranean as a vast parched salt desert valley, or wander windy grasslands with mammals long extinct, this is the book for you. Through its lucid description, the book serves as a cogent reminder of the contingencies and chances of life and evolution. There have been many Earths before this one, and the world we know is only one of many, many possibles.