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42,000,000 grains is about fourteen times as heavy as The Heart of a Blue Whale
In other words, the weight of The Heart of a Blue Whale is 0.071 times that amount.
(Balaenoptera musculus) (adult)
(for a 2014 specimen)
The heart of a blue whale weighs about 3,100,000 grains. These hearts pump an estimated 7,100 L (1,875 gal) of blood through the whale's massive body.
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