In general, an outline should include an introductory paragraph, the body of the paper (in which the main points are developed), and a conclusion.
Title - The Top Three Reasons Animals Prefer Spring Break in the Sahara
I. Introduction/Thesis - "In this paper we'll look at the top three reasons that the Sahara Desert makes an excellent vacation spot for wildlife."
- Main Point - The plentiful sunshine helps snakes get great tans.
- Main Point - It's the number-one social spot for wealthy camels.
- Main Point - Large cacti can easily be converted into predator-proof condos.
II. Conclusion and Catchy Take-Away - The Sahara: It May Be Hot, But It's the Coolest Place to Visit!