Evolution refers to the process by which different kinds of living organisms are thought to have developed and diversified from earlier forms during the history of the earth.
In biology, evolution is the change in the characteristics of a species over several generations and relies on the process of natural selection.
The term "evolution" also refers to:
1. A gradual process of development or change
2. The process of developing something gradually
3. In mathematics, the extraction of a root from a given quantity