Which is the saltiest ocean? How many fish live in the sea? Why is global warming so bad for our oceans? Find the answers to these and hundreds of other questions in this captivating book.

Which is the saltiest ocean? How many fish live in the sea? Why is global warming so bad for our oceans? Find the answers to these and hundreds of other questions in this captivating book.

Dazzling artwork scenes of sea and ocean environments capture the young reader's imagination. Simple explanations of each marine environment and the animals that live there. The app has 50 video clips with sea animals. When you look at the pages through the app, they move and shimmer. Explains how plastic pollution and global warming are affecting our oceans.