Our planet has many unique and fascinating animals, and Wonders of Nature introduces the reader to some of the most interesting among them. Amazing photos support the facts that readers will learn about these creatures. Book and lesson also available at levels J and R.Our planet has many unique and fascinating animals, and Wonders of Nature introduces the reader to some of the most interesting among them. Amazing photos support the facts that readers will learn about these creatures. Book and lesson also available at levels J and R.