If you’re looking for an extreme habitat, then you need to head for the oceans. But don’t be fooled by their beauty! This book’s at-a-glance fact files and survival tips will show you just how dangerous they can be. Oceans cover 70% of the surface of our planet and the world under the water is more extreme than anything on land. In its deepest parts, the water pressure is so massive it feels like you’re being crushed by 50 jumbo jets! Learn more about how awesome marine plants and animals have found ingenious ways to survive this inhospitable habitat.