Blue whale arteries are large enough for humans to swim through and their hearts are the size of cars.
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Alligator snapping turtles can live for over 150 years. Scientists know this because some of the turtles had musket balls in their stomachs.
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The oldest creature ever found was Ming the clam at an admirable 507 years old.
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A tortoise named Adwaita lived to 255 years old. To put it into perspective, he was born before the United States of America existed and his death was announced on CNN (1750-2006).
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