The document discusses life in the ocean, including that the ocean has different fish and zones, sea creatures must adapt to salt water, and dolphins and other animals use blow holes to breathe. It also mentions various plants and animals that live in the ocean, such as seaweed, coral, kelp, plankton, and algae, as well as palm trees. Additionally, it notes that three-quarters of the Earth is water, the Great Barrier Reef is the largest coral reef system, and oceans cover 70% of the planet.