There are many kinds of marine creatures living in the sea, many of which may be unfamiliar to young readers. This age-appropriate, accessible main text puts the focus on echinoderms, which include starfish, sea cucumbers, and sea urchins. Readers learn about the different life cycles, habitats, eating habits, and behaviors of these interesting sea creatures. Colorful and creative design elements draw readers in, giving them a detailed look at these unique organisms. Fun fact boxes, useful graphic organizers, and a detailed glossary provide additional information that supplements basic science curriculum topics.