Reading Metrics
Grade Level
Middle Grades (MG 4-8)
Book Level
6.2
Points
1.0
Fiction/Nonfiction
Nonfiction
Word Count
5058
Points per Word
0.000198
Page Count
63
Points per Page
0.015873
Series
First Book
Description
Discusses the evolution, physiology, conservation, habits, and habitats of the only mammals that fly.