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New Theory for What Caused Earth's Second-Largest Mass Extinction

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New Theory for What Caused Earth's Second-Largest Mass Extinction Empty New Theory for What Caused Earth's Second-Largest Mass Extinction

Message  gerardM le Sam 12 Sep - 21:06

Howdy.

National Geographic


Scientists have been trying to unravel what killed nearly all of Earth's animals 400 million years ago. Could it be monstrous deformities caused by toxic metals in the ocean?

New Theory for What Caused Earth's Second-Largest Mass Extinction Safe_image.php?d=AQAmVLx--AlburtI&w=470&h=246&url=http%3A%2F%2Fnews.nationalgeographic.com%2Fcontent%2Fdam%2Fnews%2F2015%2F09%2F11%2Fmetals%2F01metals.ngsversion.1441991124804

New Theory for What Caused Earth's Second-Largest Mass Extinction
Diatoms like this one can be deformed if exposed to high levels of metals in the ocean.
NEWS.NATIONALGEOGRAPHIC.COM

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gerardM
gerardM

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