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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Cymothoa exigua is a type of parasite that enters through fish's gills, eats their tongue, and then replaces it.
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The sound of a tiger's roar can travel a distance of up to 2 miles (~3 km).
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The two oldest cats on record lived to 38 and 34 years old, both were owned by the same owner and lived off a diet of bacon, eggs, broccoli and coffee.
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When you shave a guinea pig it looks like a little hippo.
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The oldest known animal in the world was 'Ming' the 405 year old clam, discovered in 2007.
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