Huge, salty seas and oceans make over two-thirds of Earth's surface a deep mystery.
Discover this "other" world, from the coastal shores and tidal pools to the bottom of the Pacific's Mariana Trench—nearly eight miles below the waves. Get to know many unique ocean creatures including whales, sharks, plankton and penguins. How do they use migration, defense and cooperation (symbiosis) to survive? And how do humans interact with the oceans, and impact our planet? This beautifully illustrated guide introduces all this and more.