|10 things we didn't know last week
1. King Tut had buck teeth.
2. Britons send as many text messages in a week now as they did in the whole of 1999.
3. The defining measure for a kilogram is "Le Grand K", a cylinder of platinum and iridium held in Paris.
4. Using camera traps to count tigers - differentiated by their stripe patterns - was pioneered in the 1920s by Englishman FW Champion.
5. There are 29 "Labour and the Co-operative Party" MPs in Parliament, including Ed Balls.
6. The Italian Mafia have commandments.
7. Gun ownership per person in Finland is the third highest in the world.
8. Dinosaurs breathed like penguins.
9. The brain can turn down its ability to see in order to listen to complex sounds like music.
10. For every one millibar decrease in pressure the sea rises 1cm.
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