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The largest land mammal in the world, is a blue whale (to be precise, the female ones are the biggest), it always has and probably always will, the females can grow up to 98 feet long, sometimes even 110 feet, and the males grow up to about 80 feet. Both are sort of the size of a 9- story building. Also, the baby blue whales grow in weight about 80kg per DAY! Also, the average blue whales heart is the size of a small car!

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15y ago

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