Animal lovers will find plenty of information in this book.  Each title is in question form which encourages learning by inquiry.  Each spread includes a full-page photo of the animal, three or four sentences for younger readers, a colored box with more information for more fluent readers, and a smaller related photo insert of the animal.  Words to know for new readers and for fluent readers are introduced in the front of the book.  Pronunciation is provided for some words.  Twelve animals are represented.  Books recommended for further reading are of a similar reading level as this book.  Three websites are mentioned.  Two are very good and one did not work at the time of this review.  Index included in the back with the photo credits.