A humming sound grows louder and louder. Suddenly, a bug the size of your hand is resting on your shoulder! Wow! Big Animals introduces some of the largest, and most interesting, creatures on planet earth. --Spectrum(R) Readers are the perfect Common Core aligned tool to support the development of nonfiction reading skills crucial to a young readerÕs success. Each leveled reader features high-interest informational content, exciting full-color photo illustrations and Common Core aligned comprehension practice focused on the development of critical thinking skills. This multilevel series is the perfect addition to any library at school or home.