Only 12,000 years ago there was a species closely related to modern humans called Homo floresiensis that had been living on an Indonesian Island. They used fire and rather advanced tools, yet were only about 3 feet tall and weighed around 25kg.
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The word 'mile' is derived from the Latin word for 1,000 - the number of paces it took the average Roman!
6
Sloths take two weeks to digest their food.
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You can hear the blood flowing through your ears if you find a quiet place and cover them tightly.
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The Statue of Liberty is made out of copper. When originally built, it looked like a shiny new penny!
10
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
Pluto is smaller than Russia.
9