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Forum List | Follow Ups | Post Message | Back to Thread Topics | In Response To Posted by Mario Dovalina on July 1, 2002 03:06:28 UTC |
We have very little fossilization from the precambrian age. It's hard to draw any definite conclusions. Perhaps the chemical composition of earth only allows for one type of self-replicating molecule to develop (doubtful) or perhaps our ancestors competed other forms into extinction. |
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