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Terran non-human intelligence

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Author Topic:   Terran non-human intelligence
Huntard
Member (Idle past 2323 days)
Posts: 2870
From: Limburg, The Netherlands
Joined: 09-02-2008

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Message 7 of 14 (573909)
08-13-2010 4:31 AM 		Reply to: Message 6 by Dexx
08-13-2010 1:12 AM

Dexx writes:
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Still, i cant help but think that 3 billion years is an awefully long time. Perhaps another species rose to the height of hunter-gatherers with stone tools and was then wiped out in an extinction event. We may never know.
Keep in mind thought that for the vast majority of those 3 billion years, life was simple and single celled. Multicellular, more complex creatures didn't appear until somewhere around the Cambrian, which was some 550 million years ago. A great bit shorter than the 3 billion you're proposing.
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