Some people are afraid of sharks because of their big sharp teeth. Whale sharks, which are the largest known fish on the planet, do not use their teeth to eat. Instead they are filter-feeders who feed on plankton. Young readers will discover this and other interesting facts through exploring a detailed narrative and fun fact boxes. This exciting learning experience enhances readers' knowledge of essential science curriculum topics, such as adaptations and marine ecosystems. Creative design elements that excite readers include full-color photographs of massive whale sharks in their natural habitats.