Denmark has twice as many pigs as there are people.
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The Lion's Mane Jellyfish is the largest jellyfish in the world. They have been swimming in arctic waters since before the dinosaurs (over 650 million years ago).
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Cymothoa exigua is a type of parasite that enters through fish's gills, eats their tongue, and then replaces it.
6
It's possible to train your cat to use the toilet as a litter box and even flush afterwards.
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