7How do fish breathe? Why is the ocean salty? Why is a whale not a fish? Find out the answers to these and many more questions in this brilliant interactive lift-the-flap fact book. Embark on an epic journey under the sea looking for fish and other ocean creatures beneath the waves, learn what shells are for, find out which sea creatures are the most dangerous, and take a closer look at a coral reef. This fascinating fact-filled book is the perfect introduction to life under the sea.