The largest breed of rabbit is the Flemish Giant.
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Denmark has twice as many pigs as there are people.
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Cymothoa exigua is a type of parasite that enters through fish's gills, eats their tongue, and then replaces it.
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Meysi is one of the world's smallest dogs, measuring in at just 7cm tall, 12cm long, and weighing a meagre 250 grams (only slightly heavier than a hamster!)
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Penguins have a gland above their eye that turns saltwater into freshwater.
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The most expensive dog in the world is the Tibetan Mastiff; worth $1.5 million.
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The world’s largest frog, the Goliath frog, can grow over 13 inches in length and can jump up to 10 feet in a single bound.
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