This book lets readers dive into the amazing world of cnidarians. Young readers will enjoy fun facts about common cnidarians such as jellyfish, coral, and sea anemones, and get up-close-and-personal with their anatomy, stinging cells, and symbiotic relationships. Vibrant illustrations and photographs of many different cnidarians help bring the text to life. Other features include a table of contents, an activity or craft, a phonetic glossary, infographics, sources for further research, information about the author, and critical-thinking questions to help readers connect with the text.