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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)
This fact seems to be partially true. Based on the sources cited above, it appears that a blue whaleâs tongue of 6,000-8,000 pounds can weigh around the same as an adult female elephant, but is unlikely to be weigh more than an adult male elephant.