|Thursday, Apr 11, 2013 - 5:00 AM
"Australia's First 4 Billion Years: Awakening"
Hidden in the red hills of Australia are clues to the mysteries of Earth's birth, how life arose and how it transformed the planet. Experts unveil the earliest forms of life: an odd assortment of bacterial slime that would flood the atmosphere with oxygen and spark a biological revolution. Part 1 of 4 G
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