Anne F. Rockwell, Lizzy Rockwell
(HarperCollins March 30, 2005)
Describes the habitats of these reptiles which scientists call a "keystone species" because they change the environment for their own use in a way that helps many other plants and animals.
- LET'S-READ-AND-FIND-OUT SCIENCE BOOKS
- 0060285311 / 9780060285319
- 27.2 oz.