Friday, February 22, 2013

- 3 million


Average time, in millions of years, between mass extinctions on Earth: 62

Millions of years since Earth's last mass extinction: 65
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1 comment:

  1. Don NaffApril 14, 2013 at 6:32 PM

    I think this time the Planet's decided it doesn't need to do anything to cause a mass extinction since humanity seems bent on making it happen without Her help.

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