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250 kilograms is about one-and-three-tenths times as heavy as The Heart of a Blue Whale.
In other words, the weight of The Heart of a Blue Whale is 0.770 times that amount.
(Balaenoptera musculus) (adult)
(for a 2014 specimen)
The heart of a blue whale weighs about 200 kilograms. These hearts pump an estimated 7,100 L (1,875 gal) of blood through the whale's massive body.
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