Cymothoa exigua is a type of parasite that enters through fish's gills, eats their tongue, and then replaces it.
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The most expensive dog in the world is the Tibetan Mastiff; worth $1.5 million.
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Alligators can live up to 100 years.
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A domestic cat can sprint at about 31 miles per hour.
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Mahatma Gandhi used to travel with his goat so that he could have fresh milk.
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Sharks, like other fish, have their reproductive organs in their chests.
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A dairy cow can produce more milk when listening to music.
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Dogs have been man's pet for over 14,000 years.
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