Avoiding Apocalypse

The Unlikelihood Of Life (1x5)

Air date: Dec 12, 2012

Life on earth depends on a frightening contest of circumstances. It is so accidental that scientists wonder how it could have come about. The living world has often had to start all over from scratch, and extinct species made way for Earth's new masters. Humankind, as civilized and technically advanced as it may be, is at the mercy of the same phenomena.