Cymothoa exigua is a type of parasite that enters through fish's gills, eats their tongue, and then replaces it.
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A 42-foot sperm whale has about 7 tons of oil in it.
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Cows can sleep standing up, but they can only dream lying down.
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The Hercules beetle, despite weighing only 100 grams, can lift 8 kilograms, making it one of the proportionally strongest animals in the world.
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