Natural Selection And The Species Boundary

Returning back to the discussion of evolution, we find that natural selection (the primary agent of species creation under the evolutionary theory) is a tautology - it can be made to explain anything. For example, evolutionists claim plant-mimicry among insects is beneficial and will be selected for, but they also claim that warning-warrior colorations, such as insect stripes, are beneficial and will be selected for. Yet if both of these hypotheses are true, any kind of coloration on the insect will have some beneficial value and will be selected for. Natural selection cannot make unique predictions, but is used retrospectively to explain everything.

Natural selection, as observed in operation, permits variations only within species boundaries. It operates also to preserve those boundaries. The theory that natural selection has the creative power needed to fuel the changes necessary to turn one species into another is unsupported by the empirical scientific evidence.

The claim of "evolution in action" is simply the observation of local fluctuations of genotypes within a single species. To be more specific, we know certain circumstances favor drug-resistant bacteria as opposed to normal bacteria, or big-beaked birds as opposed to little-beaked birds, or black-peppered moths as opposed to white-peppered moths. In such circumstances, the population of normal bacteria, small-beaked birds, and white-peppered gypsy moths may become reduced as long as circumstances adverse to them prevail, but they do not disappear. As circumstances change, their portion of the genome may again come to predominate, and the population can fluctuate back.

How far can a new species vary? Consider this fact: no one has yet bred a new species artificially. Species have inherent biological limits. The hybridization of the beet vegetable is instructive. Wild beets have a sugar content of less than 4%. Hybrids were developed from wild strains which increased the sugar yield to 17%! However, biologists have never been able to get beets of a higher than 17% yield. By breeding high-yield varieties together they often get throw-backs to the wild stocks. 17% is a barrier.

Nature has to economize in one area in order to expand in another area. This is a basic law of compensation which limits variability. This opposes evolutionary theory which suggests each organism has an infinite genetic plasticity which, coupled with mutation and natural selection, can stretch a bacteria into a human given enough time.

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