News From the Field
Explosive Growth of Life on Earth Fueled by Early Greening of Planet
July 8, 2009
Earth's 4.5-billion-year history is filled with several turning points but one of the biggest is the Cambrian explosion of life, roughly 540 million years ago, when complex, multicellular life burst out all over the planet. Now, researchers led by Arizona State University geologist L. Paul Knauth believe they have found the trigger for the Cambrian explosion.
Arizona State University
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