Blue whales are the largest creatures in the world. Blue whales, marine and mammals. These animals are many times larger than humans and other animals. It weighs about 150 tons and they can be 30 meters (98 feet) in length. The longest blue whim is a wife blue whale, which is 29 to 5 meters in length and 180 tons in weight. At one time, this giant animal is very much in number, but it is now an extinct animal. The existence of blue whales, in the face of excessive prey, sea pollution, lack of adequate food, is in the face of crisis .
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