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According to the Guinness Book of Records a female Blue whale taken on 20th March 1947 had a heart that weighed 1540lbs (698.5kg) “For an average size Blue whale a dog could run along some of its blood vessels, it weighs about as much as 6,000 small children and you could park a car in its mouth.” (according to ‘Whales and Dolphins’ by Eva Plaganyi, 1994)Top
