A study which charts the history of evolution from the dawn of life on Earth to the present day. Physical causes of the extinction of numerous species, such as global cooling, volcanism, meteors and the fall of the sea level, are assessed in terms of their plausibility.
What brings about the extinction of a species? Is it a genetic flaw or a run of really bad luck? All scientists agree on the fact of extinction, but science has never agreed on its physical causes. From the traditional theory of climatic change to the controversial theory of meteorites, this book investigates each possibility and puts the arguments for and against. Questioning much of the conventional wisdom, this book makes a number of claims, including a theory that blames all significant extinctions on falling meteorites.