Our five oceans cover about 71 percent of the earth's surface and hold about 97 percent of our water. A central part of the planet’s water cycle, oceans are essential to all living things. They are home to thousands of species, and they provide humans with food and medicine. Oceans are one of the world’s most valuable natural resources, and we must take care of them.
Robert E. Wells is the author and illustrator of many award-winning science books for children, including Can You Count to a Googol? and Why Do Elephants Need the Sun?. He lives with his wife in Washington.
Patrick Corrigan was born in the north of England and grew up drawing and designing. After university, he was an art director in a design studio for nearly ten years. He now lives in London with his wife and cat, illustrating children's books.