Also another point to further your understanding of evolution and science on the whole.
You often here evolution called the theory of evolution and it is immediately discredited by conservatives as just a theory. Evolution is scientific theory and scientific theory is a process of graduation within the scientific method. No scientist has ever proposed a scientific theory, but rather a hypothesis. E.g. Newton didn't propose the law of gravity but the hypothesis of gravity. When a hypothesis may be tested and proven accurate in all environments by various scientists around the world, after much time it graduates to scientific theory. In the case of Newtons, when a hypothesis results in definitive mathematical answers throughout any application, after many years it is accepted and graduates into scientific law.
Scientific theory is just as credible as scientific law the difference is that scientific law is more exact than theory. E.G. you may calculate the exact force of attraction between any two objects in the universe.
In the case of evolution in smaller populations there is a factor called genetic drift which plays a major role in small population sizes. This factor is entirely random and is perpetuated by random changes in allele frequencies through sexual reproduction. Tracking genetic alleles in small populations to calculate the rate and direction of evolution, genetic drift is one of the factors that inhibits an exact rate or conclusion. That is why evolution is distinguished as theory rather than law.
My point of explaining all of this is that scientific theory is entirely fact and evolution shouldn't be dismissed because it is a "theory" much like Einstein's theory of relativity shouldn't be deemed wrong.