Oceans cover more than two-thirds of Earth’s surface. Stingrays, sponges, polar bears, and blue whales—Life in the Oceans gives middle readers from grades 5 to 8 tantalizing glimpses of life beneath the sea. The book discusses the importance of ocean resources for people, too, and the modern challenge of protecting and preserving this vital environment. The book includes a fun quiz and a helpful glossary.