> species under natural selection? You miss out of account the excellent
> species that man has brought into being, like domesticated animals, high
> grain yields etc.
"Man"? Humanity or, better yet, human beings. Men are only 50% of the species.
Human beings haven't created too many new species; mostly, we've refined and altered characteristics of existing species, e.g. breeds of dogs aren't separate species, which is why they can crossbreed.
-- Dennis