Microevolution
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Microevolution, broadly defined, is the inevitable small-scale changes in allele frequencies in a population within the same species. Under this broad definition, this change in overall allele frequencies occurs with every birth or death of a member of the species.
Microevolution, narrowly defined, is the unproven theory that natural selection can, over time, transform an organism into a more specialized form within the same species. [1] Lack of evidence for natural selection has led most scientists to use the broad definition above rather than a definition based on natural selection.[2]
Sources:
- ↑ Evolutionists express their theory of "microevolutionary theory that natural selection should optimize the existing genetic variation in a population to maximize reproductive success." http://www.talkorigins.org/faqs/faq-intro-to-biology.html
- ↑ Darwin defined evolution in terms of natural selection. Today, for want of evidence of natural selection, scientists define evolution as "a change in the gene pool." Id.