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Here's some to start......
Einstein's brain was stolen even though he had requested his remains were cremated after death in order to 'discourage idolators.'
There is a town in Canada named Dildo.
In Switzerland, it's against the law to keep just one guinea pig. Because they get lonely, owners must have two. One can also rent-a-pig to keep singles company and in order to stay within the law if one of the original pair dies. CoolCavy
It only takes 42 folds in a piece of paper originally 0.1 mm thick before the height reaches the Moon.
You can hear a blue whale's heartbeat from more than 2 miles away.
A positive test was declared if the frog ovulated within 12 hours.