Perhaps death stalks the unlucky rather than the unfit. We don t really care to argue this point. Regardless of whether survival of the fittest or survival of the luckiest is the most important factor in natural selection, there is no question that survival of the most desirable works in artificial selection. Breeders consciously make the decision that only the individuals with the desired characteristics are allowed to breed. So, artificial selection represents the best case scenario for natural selection.
Artificial selection is the ultimate survival of the fittest because nothing is left to chance.
Despite this, breeders find that there are limits to how much evolution they can induce in a species. We wrote about this in The Kentucky Derby Limit . Modern Genetics Scientists now have a good enough understanding of genetics to know why evolution is limited. They know that physical characteristics are controlled by genes. The theory of evolution is based on the false notion that new genes can spontaneously form.