Well, there's the fact that mutation occurs at the level of the individual.
--- On Wed, 5/13/09, Miles Jackson <cqmv at pdx.edu> wrote:
>
> No, check out Gould's Structure of Evolutionary
> Theory. He is quite sympathetic to the notion of
> selection at the extraindividual level. There is no
> compelling reason why adaptation must occur at the level of
> the individual species member.
>
> Miles
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