44:17
History of Life: Extinction – An End and a New Beginning
Mass extinctions have shaped and reshaped the landscape of life on earth throughout its history. In this program we chronicle the history of mass extinctions and their effect on evolution. We learn that these events not only destroy life, but also c...
49:57
Miracle planet: extinction & rebirth
There was a moment in Earth's history, about 250 million years ago, when all life nearly disappeared from the planet. Scientists now believe the cause was an eruption of the Earth's molten core that triggered global climate change. The resulting dro...