Sea creatures are the amazing animals that live in the ocean. They come in many shapes and sizes, from tiny plankton to giant whales. Some, like fish, have fins and gills to help them swim and breathe underwater. Others, like octopuses and starfish, have unique features that help them survive in their underwater homes. These creatures play important roles in the ocean ecosystem. Coral reefs, for example, provide shelter for many sea animals, while sea turtles help maintain healthy seagrass beds. By understanding and protecting sea creatures, we can help keep our oceans healthy and vibrant for future generations.