10 things we didn't know last week

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1. Tortoises can run as fast as 1mph (1.6km/h).

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2. Neanderthals ate barbecue-roasted pigeon.

Find out more (The Guardian)

3. Ant colonies have personalities.

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4. The Indian record for staff absenteeism is thought to have been set by a biology teacher who did not turn up for work for 23 years.

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5. In Oklahoma, the average marijuana joint costs the same as 2.41 bottles of Bud Light.

Find out more (Washington Post)

6. There is a mathematical formula for happiness.

Find out more (QZ)

7. Eels are adversely affected by noise pollution.

Find out more (Smithsonian)

8. Mesa, Arizona, is the most conservative large city in the United States.

Find out more (The Economist)

9. The average astronaut on orbiting space shuttles gets less than six hours sleep a night.

Find out more (Daily Telegraph)

10. Grizzly bears' bodies mimic the symptoms of type two diabetes during hibernation.

Find out more (New Scientist)

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