10 things we didn't know last week
16:43 UK time, Friday, 4 March 2011
1. Kenya's MPs aren't allowed to wear bling.
More details
2. People with full bladders make better decisions.
More details (Daily Telegraph)
3. Killer whales have a "stealth mode".
More details
4. Finnish men have have some of the highest sperm counts in the world.
More details
5. The ransom paid to release Richard the Lionheart, captured in 1192 on his way back from fighting the Crusades, was the equivalent of about £2bn in today's money.
More details
6. Parents exaggerate the joy of having children to justify the sky-high cost of bringing them up.
More details (Daily Telegraph)
7. The Mr Men and Little Miss series have sold more than 100 million copies worldwide.
More details
8. There are 16 amateur superheroes patrolling UK streets at night.
More details (Sun)
9. The average time Britons have their first alcoholic drink in the evening is 7.11pm.
More details (Express)
10. Britain's biggest bird of prey is the white-tailed (or sea) eagle, which has a wingspan of eight feet.
More details
Seen 10 things? Send us a picture to use next week.
The 
