Evolution (Introduction)

by David Turell , Thursday, August 20, 2009, 14:43 (5573 days ago) @ David Turell

How did most of our earth's oxygen appear? It's been known for some time that cyanobacteria made it by photosynthesis. How they came to do it is shown in this article which proposes that two different bacteria combined themselves, one into the other: - http://www.physorg.com/news169907476.html

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Evolution (Introduction)