10 things we didn't know last week
1. German tourists can travel to more countries without a visa than any other nationality.
2. The Cat in the Hat author Dr Seuss produced Allied propaganda films in WW2.
3. Moon jellyfish can age backwards and regenerate body parts.
4. Our galaxy is past middle-age and stopped making new stars eight billion years ago.
5. Donald Trump's ancestor changed the family name to Trump from Drumpf.
6. One in eight blue plaques in London honour women.
7. A town in Spain has been celebrating a duck throwing festival for 100 years.
8. Ordinary Canadians privately sponsor nearly half of refugees entering the country.
9. St Davids is Britain's smallest city, with a population of around 1,600.
10. A rare blind salamander reproduces just once or twice a decade.
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