"Life could have started up from the small molecules that nature provided," says Robert Shapiro, a chemist from New York University. Shapiro and others insist that the first life forms were self-contained chemistry experiments that grew, reproduced and even evolved without needing the complicated molecules that define biology as we now know it.
Very speculative, but interesting. It is important to note that his area of research, biopoesis, does not involve evolutionary theory. Read the whole thing.
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