10 things we didn't know last week
1. Crows go to school.
4. Polar bears wave.
More details (Daily Mail)
5. More than half of all Americans dress up at Halloween.
6. The normal lifespan of an octopus is three years.
More details (The Australian)
7. Liberalism is genetic.
More details (The Guardian)
8. A footballer can be allergic to grass.
More details (The Sun)
9. Mount Everest has its own 3G wireless network.
10. Some 7.2 million British people get by without a wristwatch.
Seen 10 things? Send us a picture to use next week. Thanks to Vic Barton-Walderstadt for this week's picture of 10 water droplets.