Reading Metrics
Grade Level
Middle Grades (MG 4-8)
Book Level
9.0
Points
5.0
Fiction/Nonfiction
Nonfiction
Word Count
27322
Points per Word
0.000183
Page Count
192
Points per Page
0.026042
Description
Characteristics of mammals are described in this book, and profiles of over one hundred prehistoric mammals that lived on Earth before and during the time of early humans are featured, along with information on their size, variety, and fossil remains.