10 things we didn't know last week

1. Ancient Britons ate frogs' legs.

Find out more (the Guardian)

2. "Territorial discrimination" by fans - for example insulting Neapolitans - is an offence that can lead Italian football clubs to have to play behind closed doors.

Find out more (Financial Times)

3. Marmosets are too polite to interrupt each other.

Find out more (Daily Mail)

4. Morrissey was asked to perform Smelly Cat on Friends.

Find out more (Time Out)

5. A universal law of urination means that elephants, cows, goats and dogs all take roughly 21 seconds to empty their bladders.

Find out more (New Scientist)

6. The country where you are most likely to be enslaved is Mauritania.

Find out more (Washington Post)

7. Adding tiny Lego brick-style studs to solar panels makes them 22% more efficient.

Find out more (Imperial College London)

8. From the age of 18 months a child can tell when someone is being insincere.

Find out more (the Times)

9. On Saturn and Jupiter it probably rains diamonds.

Find out more

10. It's a myth that President Chirac regularly ate calf's head - he preferred snails and sauerkraut.

Find out more (Daily Telegraph)

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