Oysters can change their sex from male to female. They can do this countless times.
France was still using the guillotine when the first “Star Wars” movie was released.
One day on the Moon lasts for 700 hours, or nearly 30 Earth days.
Every year in Great Britain, from the effects of smoking, more than 100.000 people die. That is seven times more than in traffic accidents.
In the year 1900, the number of human population was 1.5 million, of whom a quarter lived in Europe.
A pearl can be found in one of a thousand oysters, and only in one of three thousand mussels.
