Evolutionary biology

Evolutionary biology is a subfield of biology that analyzes the four mechanisms of evolution: natural selection, mutation, genetic drift, and gene flow. The purpose of evolutionary biology is to observe the diversity of life on Earth. The idea of natural selection was first researched by Charles Darwin as he studied bird beaks.

Extends: [Evolutionary biology](https://wikipedia.org.ai/Evolutionary biology), [Philosophy of biology](https://wikipedia.org.ai/Philosophy of biology)