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When does the first creature appear?

 
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jzmm



Joined: 12 Mar 2005
Posts: 3
PostPosted: Sat Mar 19, 2005 12:45 am    Post subject: When does the first creature appear? Reply with quote
When is the first creature born?
Who can tell me.
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Bob S.



Joined: 29 Apr 2004
Posts: 1767
Location: So. Cal
PostPosted: Mon Mar 21, 2005 12:53 pm    Post subject: Reply with quote
Nobody knows for sure, but the first Pre-Cambrian life appeared approximately 3 to 4 billion years ago.
http://www.geocities.com/CapeCanaveral/Lab/2948/orgel.html
http://www.origins.rpi.edu/
http://en.wikipedia.org/wiki/Origin_of_life

If you mean born literally, then, sexual reproduction can occur only in multicellular lifeforms which developed during the time of the Cambrian Explosion around 500 to 600 million years ago.
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