Exploring Creation with Zoology 1: Flying Creatures of the Fifth Day , 2nd Edition is part of Apologia’s award-winning Young Explorer Series designed for elementary students. Throughout this homeschool science curriculum, students will learn about the amazing design and characteristics of flying creatures as part of God’s creation. They’ll also be empowered to apply their newfound knowledge as they observe the wonder of flight in their own backyards! Apologia product: https://www.apologia.com/shop/zoology-1-flying-creatures-textbook/