the blue whale is one of the largest known animals living on the planet, it is one of the marine mammals and its scientific name (Balaenoptera musculus), and weighs between -150 tons to 170 tons, it may reach eighty-nine feet.
Blue whale`s tongue weighs 2.7 tons. When the mouth is open it can accommodate up to 90 tons of water and food, but it can not swallow anything larger than the size of the beach ball despite his big mouth.
It does not have teeth, but it has several plates on either side of the roof of his upper jaw, called Ballines, which number is four hundred, it is characterized by fine hairs at the end.
The color of its skin is blue dotted with dots lighter than the color of the original skin, and has a very weak sense of smell and sense of sight .
It swims very fast, and has a very strong voice, and it is characterized by its calm and peaceful and modesty.
It does not attack any creature unless it harms him.
It breathes oxygen, so it rises to the surface of the water a lot to fill its lungs with an appropriate amount of air, and to get ride of the rotten air from the openings of his nose.
The female is larger than the male, its pregnancy lasts between 10 months and 12 months and it breastfeeds her baby a full year.