It has been estimated that a bite from a grizzly bear can crush a bowling ball.
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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
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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There's a rare breed of pig that looks like a sheep.
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