Book Description: How would you describe a hippopotamus? Big might be the first word that comes to mind. What about a whale? Gigantic? Immense? How about enormous! What if you had to find a word for the biggest animal of them all—a dinosaur. Mammoth? Humongous? Colossal! With its bright pictures of animals in all shapes and sizes, this terrific read-aloud introduces young children to the language of comparisons, synonyms, and antonyms.