Răspuns:
The blue whale (Balaenoptera musculus) is a marine mammal subordinate to the baleen whales (Mysticeti). [4] [5] With a length of 30 m [6] and a body mass of over 170 tons, [7] it is the largest known animal that has ever existed. [8] Long and slender, the body of the blue whale may have different shades of bluish-gray on the dorsal side.
