Evolution is usually a gradual process, but about half a billion years ago it took off at a gallop in an event that's now known as the Cambrian Explosion. One of the leading theories is that this was thanks to a huge spike in oxygen levels, and now a team may have found where all that oxygen come from – plate tectonics.
.. Continue Reading How plate tectonics may have changed the climate and paved the way for complex life to evolveCategory: Science
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from New Atlas (Gizmag) http://bit.ly/2IqN3MZ
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