Learn the fascinating story of one of the world's oldest animals: jellyfish! Jellyfish are everywhere and are one of the Earth's most fascinating animals. From the giant Nomura jellyfish in Japan, to the small but deadly kingslayer jellyfish in Australia, veteran nonfiction author Ginjer L. Clarke spotlights one of the world's oldest animal groups. Told with simple language and shown with vivid photographs, Jellyfish! is perfect for emerging readers curious about the natural world.