Introduces the different types of caterpillars and how they move, eat, protect themselves from predators, and transform into a butterfly or moth. Interest Level: K-3 Reading Level: 3.9 ATOS Book Level: 5.4 AR Interest Level: LG AR Points: .5 AR Quiz: 145055EN Lexile Measure: 930 Lexile Code: NC (Non-Conforming Text).