10 things we didn't know last week

1. Shy male birds build closer friendships than bolder birds.

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2. Coleshill in Warwickshire is the Viagra capital of England.

Find out more (Daily Mail)

3. Pete Waterman has a trainset in his barn based on 1950s Leamington Spa.

Find out more (Financial Times)

4. Countries with average GDP below $18,500 (£11,558) tend to chop down forests, while those above tend to plant them.

Find out more (The Economist)

5. Men with wide faces make people around them more selfish.

Find out more (Science Daily)

6. The first "drunk tank" was set up in Prague in 1951.

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7. Tigers share 96% of their genes with the domestic cat.

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8. Since 2000, until this week, most Americans considered Russia a friendly nation.

Find out more (Gallup)

9. The best way to get served at a crowded bar is standing square and looking directly at the barman.

Find out more (Daily Telegraph)

10. Smaller animals perceive time as if it is passing in slow motion.

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