Statikk, "microevolution" infers that some kind of genetic parameters exist, for which there is no evidence. If you accept the mechanics of microevolution, then what could possibly prevent such changes eventually resulting in a diverse range of species?
Often creationists wrongly assume that what we call a species is a fixed attribute. But species is a word we simply give to a group of animals that share a common genetic pool. It's an established and proven fact that DNA changes all the time. Sexual reproduction allows for a lot of variation in offspring. The basic principles of evolution are as follows:
- Within any population there is variation.
- Not all organisms within a species will reach maturity; many die before they have the chance to reproduce (thus removing their DNA from the genetic pool of the population).
- Those possessing characteristics beneficial to their survival within their environment have an increased chance of reaching maturity and producing offspring (therefore adding their DNA to the genetic pool of the population).
- The offspring will inherit those beneficial characteristics.
Creationists often wrongly believe that if such principles exist, then the whole species must evolve with each other and that no diversity is possible. Evolution relies on the
isolation of groups belonging to the same species for them to diversify. There are many examples of this, often observed in birds and fish.