False teeth are often minutely radioactive.
214
Consumption of TNT turns urine amber or deep red, which people often mistake for blood.
301
For most people, no matter how hard you pinch the skin on your elbow with your fingers it doesn't hurt.
515
In 1992, 29,000 rubber ducks washed off a ship. They were found thousands of miles away 8 years later.
707
The elephant shrew’s closest relative isn’t a shrew — it’s actually an elephant
9