What newborn sea creature weighs as much as a fully-grown elephant? Which sea animal can live longer than most humans? Which one looks just like a star? Young learners interested in nature and animals will dive deep to meet giant whales, scary sharks, and miniature seahorses that can all breathe in the water. From the reef to the sandy ocean floor, animals swim and crawl among curious plant life.With two-page colorful illustrations, World Books Learning Ladders series is for young learners with a primary reading level of grades K-2 looking to learn the basics about nature, science, and their communities. Each nonfiction book was created for children to learn about topics theyre most curious about. Each book in the 10-volume series features colorful illustrations, fun facts, and easy to understand sentences. Words in bold type help early readers build vocabulary skills.