"Have you ever thought about everything the ocean does for you? It changes the weather, creates oxygen, provides food, and is a great place to have fun, too! So why is the ocean such a big deal? Because we couldn't live without it! This funny and factual picture book from Heart and Brain creator Nick Seluk explains the science behind the ocean: its plant and animal life, its contribution to the world, and what we can do every day to protect it. Humans wouldn't be able to survive without a healthy ocean. That's kind of a big deal".