10 things we didn't know last week
1. Wearing camouflage clothing is an offence in Barbados.
2. Some 20 million people in the UK and Ireland have genes that produce red hair.
3. The first known use of the verb "to twerk" was in a 1995 single by the rapper Cheeky Blakk.
4. A valley longer than the Grand Canyon is hidden beneath ice in Greenland.
5. The average personal space boundary is between eight and 16in (20-40cm) from a person's face.
6. Light therapy helps bullied mice overcome anxiety.
7. Qatar takes into account people's occupation before deciding whether they can apply for a driving licence.
8. Texters who send messages to a driver may be held liable in the event of a crash in New Jersey.
9. Steve Ignorant, singer with anarchist punk band Crass, now works on a lifeboat.
10. The average age among employees in the US restaurant industry - including fast food outlets - is 29.
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