How are day and night different in each of the main habitats on Earth? Discover it with this series of books!The ocean can be bright and warm or dark and cold. During the day, the sunlight heats the water surface. At night, everything turns dark. How does this change affect the creatures that live there? What do animals such as sharks, turtles, and whales do as the day goes by? Learn about the ocean habitat while you follow its daily cycle in this beautiful book!