View Spread What Is a Mammal? Rosen REAL Readers RL Grades 1-2 IL Grades 1-2 GRL E Details: Product type: Paperback Book 6-Pack ISBN: 978-0-8239-8191-5 Author: Janet Carson Copyright: 2001 Reading Level: Grades 1-2 Interest Level: Grades 1-2 GRL: E Lexile: 160L Dimensions: 5 1/2" x 8 1/2" Paperback Book — $6.90 / $5.90 6-Pack — $41.40 / $35.40