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Estimated between 1,300 to 2,000, the population of blue whales is dangerously low.
Blue Whales are difficult to weigh because of their size. Most Blue Whales killed by whalers were not weighed whole, but cut up into manageable pieces first. This caused an underestimate of the total weight of the whale, due to the loss of blood and other fluids. Nevertheless, measurements between 150 and 170 tonnes (160 and 190 short tons) were recorded of animals up to 27 m (88 ft 6 inches) in length. The weight of a 30 m (98 ft) individual is believed by the American National Marine Mammal Laboratory (NMML) to be in excess of 180 tonnes (200 short tons). The largest Blue Whale accurately weighed by NMML scientists to date was a female that weighed 177 tonnes (196 short tons).
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The lifespan of a blue whale is estimated to be 80 years.
Blue whales may also make sounds to communicate with other whales and to find a mate.Imagine what it would be like to be the biggest animal in the world swimming alone through the cold ocean waters.
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