marine mammal (eats plankton, krill, small fish).  Its length reaches 33 meters, and its weight can significantly exceed 150 tons. Age can reach (on average) 80-90 years (maximum 110 years!). The blue whale has an elongated, slender body - its length to body thickness ratio is much greater than that of other baleen whales. The head is large, making up about 27% of the body length. Small eyes are located almost above the mouth, close to its corner.