Students are familiar with fish and perhaps some other underwater animals, but have they ever thought about where in the ocean these animals live? In this lesson, students will be encouraged to learn more about the special adaptations of animals with which they are already familiar. It will introduce students to different ocean depths and to the ways in which animals have adapted to live at different depths. In the process, they will look at the photographs of David Doubilet and think about how photography can help save the oceans.