Now We Know What Early Earth Smelled Like

May 4, 2013 2:57 PM

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Now We Know What Early Earth Smelled Like

When one kind of microbe fed on another, the result was a rotten-egg stench—and a pathway for complex life.

Early earth had a distinctive aroma. And it wasn't very nice. That's what scientists have now determined, using advanced imaging techniques to examine fossils nearly 1.9 billion years old that were collected from rocks around Lake Superior, Canada.

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