Dolphins are (1) ... (SURE) some of the most fascinating creatures in the ocean. They are known for their playful nature and intelligence. These marine mammals can often be seen jumping out of the water, riding waves, and swimming alongside boats. Dolphins are often found in (2) ... (ROCK) coastal areas, where they can find plenty of fish to eat. They live in groups called pods, which helps them work together to hunt and protect each other. This teamwork is especially important because, in the vast ocean, dolphins can sometimes feel a sense of (3) ... (HELPLESS) against larger predators. In many cultures, the dolphin (4) ... (SYMBOL) freedom and joy. Their friendly interactions with humans have made them beloved animals worldwide, inspiring stories and movies.