Evolution: How Natural Selection Works

This beginner microcourse explains natural selection as a mechanism that produces adaptation and biodiversity over generations. Students learn how mutations generate variation, how selection changes which traits persist, and how populations diverge into different species. Through concrete examples such as the Galapagos finches and antibiotic resistance, students connect concepts to real biological cases. After completing the course, students will be able to explain the steps of natural selection and justify why evolution is a well-supported scientific fact.