Both dolphins and sharks are fascinating creatures of the sea. Dolphins, known for their intelligence and playful nature, have a smooth skin and a curved dorsal fin. Sharks, on the other hand, are known for their strength and are easily recognized by their sharp teeth and pointed dorsal fin. Sharks' skin feels like sandpaper, quite different from the smooth skin of dolphins! Dolphins use echolocation to find their food and have a unique way of communicating with each other. Sharks, however, rely on their keen sense of smell to locate their prey. Contrary to popular belief, not all sharks are dangerous to humans. In fact, dolphins and sharks both play crucial roles in maintaining the balance in our ocean's ecosystem. Understanding and appreciating these magnificent creatures helps us realize the importance of marine conservation.