here I is with no pretense of being a scientist asking steve a perfectly civil question and was answered with abuse, and that there is no preservation of favoured races because evolution is purposeless.
knowing how he promotes Darwin so much, I was somewhat surprised.........and so
   on the origin of species by means of natural selection, or the preservation of favoured races in the struggle for life.
Charles Darwin   1859.
neither did I intend to convey a meaning of intention when I utilized the already tendered term "weeding out". I did not realize that this expression could only be used in terms on intent.