Evolution is just change over time

The Five Fingers of Evolution.A thorough understanding of biology requires a thorough understanding of the process of evolution.Most people are familiar with the process of natural selection.However, this is just one of five processes that can result in evolution. Before we discuss all five of these processes,we should define evolution.Evolution is simply change in the gene pool over time.But what is a gene pool?And for that matter, what is a gene?Before spending any more time on genetics,let us begin with a story.