Comment to 'Evolution or creation of breeds'
  • I think most people accept micro-evolution. Macro-evolution is another story. The whole sale change of a species as far as I know is unproven, since there is no transistional fossil records that I am aware of to date. In talking about dogs they are still dogs whether it is a poodle or a Caucasian. So I would agree with Dr. Behe [quote] Microevolution is the occurrence of small-scale changes in allele frequencies in a population, over a few generations, also known as change at or below the species level [1]. These changes may be due to several processes: mutation, natural selection, gene flow, genetic drift and nonrandom mating. Population genetics is the branch of biology that provides the mathematical structure for the study of the process of microevolution. Ecological genetics concerns itself with observing microevolution in the wild. Typically, observable instances of evolution are examples of microevolution; for example, bacterial strains that have antibiotic resistance. Microevolution can be contrasted with macroevolution, which is the occurrence of large-scale changes in gene frequencies in a population over a geological time period (i.e. consisting of extended microevolution). The difference is largely one of approach. Microevolution is reductionist, but macroevolution is holistic. Each approach offers different insights into the evolution process. [/quote] http://en.wikipedia.org/wiki/Microevolution [quote] In evolutionary biology today, macroevolution is used to refer to any evolutionary change at or above the level of species. It means at least the splitting of a species into two (speciation, or cladogenesis, from the Greek meaning "the origin of a branch", see Fig. 1) or the change of a species over time into another (anagenetic speciation, not nowadays generally accepted [note 1]). Any changes that occur at higher levels, such as the evolution of new families, phyla or genera, are also therefore macroevolution, but the term is not restricted to those higher levels. It often also means long-term trends or biases in evolution of higher taxonomic levels. [/quote] http://www.talkorigins.org/faqs/macroevolution.html