Most adaptations are a result of natural selection that occurs over a long period of time.

When an animal has a trait that is more successful in a population, it may produce more offspring. As a result, that trait is passed down through generations. Over time, that trait becomes more common in the population.

Students will analyze various adaptations commonly found in freshwater fish to determine how they might help with survival. Then, they will apply their knowledge by describing the habitat and natural history of a fish they recently “discovered.” Students will also be given the opportunity to view pictures of Arizona native fish to determine what adaptations they have.

The lesson is available as a downloadable PDF that includes ideas to extend and modify the lesson for different audiences.

For a different version of this activity, check out the related Focus Wild activity.

This lesson is modified from Project WILD Aquatic’s “Fashion a Fish” activity.