With bright, bold, graphic illustrations and rhyming text, this is a good introductory book for young children about different animal traits.  The text in the main body of the book doesn’t even specify the animals in question: some animals wear hair and some animals wear scales…but it’s up to the reader to look at the illustrations for examples of just what animals fit each description.  A good opportunity for letting young students see which animals they can identify by sight.  In the back, brief paragraphs go into more details, naming the animals pictured earlier in the book and explaining why they need the specified trait.  Not dense with information, but still a good introduction.