Whales are some of the most fascinating creatures on Earth, embodying both elegance and power. These marine giants belong to the order Cetacea, which includes dolphins and porpoises. Whales are divided into two main groups: baleen whales and toothed whales. Baleen whales, like the blue whale—the largest animal to ever exist—filter food through their baleen plates, consuming massive quantities of small organisms like krill. On the other hand, toothed whales, such as sperm whales and orcas, hunt prey like fish and squid using their sharp teeth and sophisticated echolocation abilities. Whales are known for their complex social structures, communication skills, and long migrations, some of which span entire oceans. Despite their size, these creatures are vulnerable, facing threats from climate change, pollution, and hunting. Their intelligence and grace in the water make them a symbol of the need to protect marine ecosystems.