Sifrhippus was a species of horse about the size of an average duck and roamed North America 56 million years ago.
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The Hercules beetle, despite weighing only 100 grams, can lift 8 kilograms, making it one of the proportionally strongest animals in the world.
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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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Denmark has twice as many pigs as there are people.
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There are approximately three chickens for every human on Earth.
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