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The youngest billionaire is 24 years old and his property is estimated at 1.5 billion USD.
The youngest Olympic medalist is 13 years and 85 days old.
Centipedes do not have 100 legs. Galleyworms have the highest number of legs – 350 pairs of legs, which means 700 legs.
A tortoise can live up to 200 years.
Colibri, the smallest bird in the world, is as big as an ostrich eye.
Kangaroos cannot walk backwards.
Red Kangaroo can run at a speed of 56 km/h (the fastest man in the world runs at a speed of 36 km/h), and are able to jump over 8 m by just one jump, up to 1.8 m high.
If all the blood vessels in the body join together and stretch, they would be able to twine around the Earth two times.