Early links in the chain of being
April 22, 2010 8:40 AM Subscribe
First there was Ida, the first molecule to self-replicate. (that's one hypothesis, anyway.) From Ida, eventually, came the Last Universal Common Ancestor, or Luca. The first substance to store information about itself in the form of a genetic code. Luca may be the form of Life from which all Life has evolved.
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