Sources:PowerPoint1, PowerPoint2, Web1, text (p. 459-507)

1. What are the key characteristics of mammals?

2. What are the three major types of mammals?

3. Which are the two most diverse groups of mammals in both the world and Arizona?

4. What is the difference among antlers, horns, and pronghorns?

5. How do moths (and some other insects) avoid becoming bat food?