Miracle Planet
Flora and fauna, sea and stone - the elements of life on earth as we know it. But how did the complicated existence on Earth come to be?
3. New Frontiers
0.0Apr 22, 2005 · 60 min
From microbes to the first complex creatures, life was always searching for new frontiers. By 450 million years ago, Earth had become a less violent planet - no longer bombarded by giant meteors from space and the great ice ages had passed.