How do caterpillars turn into butterflies? This beautifully-illustrated picture book explores the life cycle of one of nature's most magical creatures: the cute, crawly caterpillar who magically transforms into a butterfly. The story begins with a colorful butterfly who lays twelve tiny eggs on a plant. The eggs hatch, and twelve larvae, or baby caterpillars, crawl out and explore the world. The caterpillars eat every leaf in sight, molt a few times, and scare off a hungry bird by clicking and secreting a poisonous liquid. Then, they magically transform into chrysalises. Finally, twelve beautiful butterflies emerge and fill the world with colorful enchantment. Illustrated in bold rainbow colors and filled with cute, whimsical detail, this rhyming tale brings science to life in a fun, delightful way.