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dnautics
on Dec 3, 2010
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Microbes use arsenic in their DNA: Proves phospho...
um, no it proves the exact opposite. There exist species which have not come about through mutation and natural selection, but rather by artificial selection.
EGreg
on Dec 3, 2010
[–]
when you say artificial selection, you mean selection by humans? Then yeah. Although humans are natural too.
I just mean selection by forces within nature and not an external factor
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