Over its more than 4-billion-year history, Earth has been home to repeated violent climactic changes, which have caused mass extinctions. And yet, life has survived. In fact, these same catastrophes that devastated life on Earth also helped bring about its evolution from the simplest microbes to the complexity and diversity that is found on the planet today. Filmed in High Definition this series features location footage, interviews with the world's foremost scientists and cutting-edge computer technolog