A cow produces around 200,000 glasses of milk in her lifetime.
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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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Sergeant Stubby was the only war dog to be promoted to sergeant through combat in WWI. He saved his regiment from surprise mustard gas attacks, found and comforted the wounded, and even once caught a German spy by the seat of his pants, holding him there until American Soldiers found him.
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It has been calculated that a single breath from a mature blue whale can inflate up to 2,000 balloons.
492
Sloths take two weeks to digest their food.
243
There's a competition in Sweden called Kaninhoppning, or rabbit show jumping.
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By putting a frog in a bucket of milk, scientists following up on an ancient Russian way of keeping milk from going sour have identified a wealth of new antibiotic substances.
9