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planetearth.nerc.ac.uk...
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www.planetdinosaur.com...
Originally posted by Aquarius1
445 million years ago, I am assuming that civilizations has been wiped out numerous times, doesn't seem possible that they could go back that far.
[edit on 28-3-2010 by Aquarius1]
www.scotese.com...
Originally posted by crazyinthemiddle
Originally posted by Aquarius1
445 million years ago, I am assuming that civilizations has been wiped out numerous times, doesn't seem possible that they could go back that far.
[edit on 28-3-2010 by Aquarius1]
I would definitely agree with this. When we are dead and gone, not much will remain after a few hundred years. The same goes for any other civilization that may have existed before us. It's staggering to think we are the only ones when you look back on a timeline that is billions of years long.