It is the largest known animal on Earth, belonging to the whale order, baleen whale family, and has a gentle personality. Known for its enormous size, adult blue whales can grow up to 25 to 30 meters in length and weigh around 200 tons. The body color is usually deep blue or gray, with a lighter belly. Having a huge head and wide jaw, as well as a U-shaped mouth, it can filter and feed on large amounts of krill and other small marine organisms. They have a wide distribution range and can be found in oceans from the Arctic to the Antarctic, but they prefer colder waters. It is a mammal that needs to regularly float and breathe, and its huge jet holes can spray up to 12 meters of water column.