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seen Nov 19 '14 at 3:58

comment Is there any evidence that a virus can modify human evolution
indeed, but the selection there is can this virus/bacteria kill me. You could argue that certain personality traits/intelligence etc was a byproduct of this - e.g. a fear of rats from the plague, and perhaps an intelligent person would be more inclined to notice patterns and adjust their behaviour to avoid infection. I was wondering if there was a more direct result - fragments of dna inserted into genomes that altered organisms, certainly possible I'd imagine - was wondering if it ever actually happened - that anyone knows about anyway.