Cymothoa exigua is a type of parasite that enters through fish's gills, eats their tongue, and then replaces it.
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Cats recognise the voice of their owner, but never evolved to care.
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When a drone bee mates with a queen, its ejaculation is so powerful that it can even be heard by the human ear.
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A group of pugs is called a grumble.
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Early American humans hunted car-size armadillos and used their shells for houses.
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