"Millions of animals call the ocean their home. But some sea animals are in danger. You'll learn about different species that are disappearing due to overfishing, pollution, and disease and how you can help these endangered sea creatures."--Back cover.

"Level 5.5."--P. [4] of cover. "Word count: 1904."-- P. [4] of cover. "Early intervention Level 28."--P. [4] of cover. "Guided reading Level U."--P. [4] of cover.

A world in danger -- Ocean trouble -- Pacific Ocean -- Atlantic Ocean -- Indian Ocean -- Around the world -- Come together.