In this FAQ we try to answer these questions. They happen with great regularity. Almost all mutations are neutral. Researchers have culled information from many different fields to address this question. I thought evolution was just a theory.
Biological evolution is a change in the genetic characteristics of a population over time.
That this happens is a fact. Biological evolution also refers to the common descent of living organisms from shared ancestors. The theory of evolution describes the mechanisms that cause evolution. So evolution is both a fact and a theory. Many people of Christian and other faiths accept evolution as the scientific explanation for biodiversity.