Thursday, February 19, 2009

Week 7, Our Genes

It would be scary if our genes weren't still being shaped by natural selection...I don't even know what that would mean! It seems kind of illogical to think of humans as a finished, fully evolved species that is no longer under the pressure of natural selection. The only reason that we can't see how natural selection shapes the human species is because changes caused by natural selection can be discreet and take millions of years to develop (and because our egos get in the way when we think we are the culmination creation of the universe). 

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