Cymothoa exigua is a type of parasite that enters through fish's gills, eats their tongue, and then replaces it.
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Sharks have been on the planet longer than trees.
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A group of pugs is called a grumble.
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A newborn Chinese water deer is so small, it can (almost) be held in the palm of a hand.
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Whales and dolphins can't taste anything other than salt.
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Sheep, goats, octopuses, and toads have rectangular pupils.
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