It is a large marine mammal belonging to the family of baleen whales in the order of cetaceans. Known for its massive size, unique social behavior, and spectacular leap out of the water. The body length is usually between 10 and 16 meters, and the weight can reach about 30 tons. Having broad pectoral fins that can reach up to one-third of body length, it is the largest among all whale species. The head is huge, accounting for about one-third of the body length, and has obvious nodular skin. Mainly distributed in temperate and polar seas around the world, it undergoes long-distance migration. Feeding on small fish and plankton, using a unique hunting technique called "bubble net" to catch prey by blowing out bubble rings