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 cat brain weighs about 30g.
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George was the world's largest dog who weighed 233 pounds, stood at 43 inches tall from paw to shoulder, and ate 180 pounds of food a month.
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The two oldest cats on record lived to 38 and 34 years old, both were owned by the same owner and lived off a diet of bacon, eggs, broccoli and coffee.
12
It has been calculated that a single breath from a mature blue whale can inflate up to 2,000 balloons.
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A cow produces around 200,000 glasses of milk in her lifetime.
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Nicole Kidman is scared of butterflies.
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