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Oxygen May Hold Key to Evolution

For years, scientists have debated about the impact of environment on the progression of evolution. Precambrian oceans had low oxygen levels that sustaining life was nearly impossible. There had been a mystery as to why when only algae existed, suddenly more complex animal life appeared. High oxygen...
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Biology / Marine Biology : Ocean Acidification

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Lots of oxygen does not necessarily lead to the evolution of advanced life

Academics / General Science : ScienceDaily: Science Society

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Issues & Causes / Environmentalism : Physorg: Earth

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