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A blue whale can weigh as much as 200 short tons (400,000 lbs). An adult blue whale can weigh up to around 180 metric tons (400,000lbs). A blue whale can weigh as much as 200 short tons (400,000 lbs).An adult blue whale can weigh up to around 180 metric tons (400,000lbs). A blue whale calve can weigh up to 2.7 metric tons (almost 6000lbs)
Mostly, blue whales are going to swim in groups. Blue whales can have up to 100 feet (30 meters) and they can weigh up to 200 tones. In fact, a very interesting thing about blue whales is that only their tongue has such an impressive weight, that is can equal the one of an elephant.