Caterpillar to butterfly, tadpole to frog – some creatures take growing up to a whole new level! Learn all about how animals grow and change in this leveled Co-reader, perfect for parents and kids to read together. Through vibrant, adorable images and expert-vetted text, you'll glimpse some of the most amazing metamorphoses in the natural world. Kids will see a tadpole transform into a frog, watch a caterpillar become a butterfly, and learn how a nymph becomes a dragonfly.National Geographic Co-readers provide one page of adult read-aloud and one page of kid read-aloud text on each spread, building toward a collaborative reading experience.