Science and Technology : Volcanic Rock Discovery Calls Theories About Life's Origins Into Question

Clyde C Coger Jr

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Volcanic Rock Discovery Calls Theories About Life's Origins Into Question


Yasmin Tayag

Inverse

... But on Thursday, the scientists behind a study soon to be published in Nature report that oxygen in the atmosphere didn’t rise to significant levels until after complex life arose — suggesting that oxygen wasn’t all that important after all.
... said study co-author Daniel Stolper, Ph.D., an assistant professor of Earth and planetary science at the University of California, Berkeley, in a statement.


https://www.yahoo.com/news/volcanic-rock-discovery-calls-theories-195900920.html

Though all present-day life on Earth requires oxygen to survive, the sea and sky were not oxygen-rich when life first emerged.



One of the world's oldest fossil animals is Dickinsonia, which lived in the oceans 550 million years ago.
 

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