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2% dna difference: less is more

The 2% difference in DNA had by humans and chimps underscores our common ancestry and is thought  to show that humans and apes in their present form belong on the same continuum.

But actually, the smaller the amount of difference in DNA, the stronger the evidence for a NON-dna difference!  Imagine that it were found that the difference is a small fraction of 1%: just enough to keep us from breeding with each other and to make us look different.  No difference in brains or brain DNA.  Yet a large difference in how we behave.

The difference in how we behave would have to be accounted for by factors other than DNA: such evidence would call for a dualistic explanation.

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