Learn fun facts about some of your favorite  animals including pigs, ducks, sheep, roosters, chicks, and horses in this simple yet informative introduction to nonfiction. Featured animal questions: • Why do pigs roll around in the mud? • Why do  ducks play in the rain? • Why do roosters crow early in the morning? • Why do chicks have yellow feathers? • Why do sheep have wool? • Why do horses wear shoes? Introduce early learners to nonfiction with this layered series full of fun and learning. Each book explores a STEM topic by answering questions kids want to know! The whimsical pages of these books feature the why do questions and silly answers and illustrations before revealing the true answers. Vocabulary words and simple activities are scattered throughout to add to the fun. Plus additional facts and photos of the featured animals can be found in the back pages to enhance the readers knowledge of each animal!