Whales are some of the largest creatures on earth and are found in oceans all over the world. They are marine mammals and breathe air through a blowhole located on the top of their head. There are two types of whales: baleen whales and toothed whales. Baleen whales filter food through baleen plates in their mouth, while toothed whales hunt for their food using their teeth. Some of the most well-known whale species include the blue whale, humpback whale, killer whale, and beluga whale. Unfortunately, many species of whales are endangered due to human activity such as hunting and pollution, and efforts are being made to protect and conserve these incredible creatures.
