Mitten, Luana K. <br/><br/>
Sorting it all out / 
by Luana K.Mitten and Mary M. Wagner 
 - Florida :  Rourke Publishing ,  2004. 
 - 16 pages :  color illustrations ;  16x19 cm . 
<br/><br/>F <br/> 
<br/><br/> The book compares the attributes of vertebrates and invertebrates, helping children understand how scientists group animals by their physical traits. For example, it explains that a wolf has live babies, fur, four legs, and bones, classifying it as a mammal, similar to a cat, dog, or horse 
<br/><br/> 300 <br/>  Lexile estimate <br/>  F <br/>  Raz-Plus <br/> 
<br/><br/><label>ISBN: </label>9781595152619 
<br/><br/><label>LC Class. No.: </label>QL49.M58