1. Research has shown that people who earn more prefer the toilet paper to come from the top of the roll. Consequently, those who earn less often position the roll so that the paper comes from the bottom;
2. Women blink more than men. One study found that women blink spontaneously 19 times per minute, while men blink only 11 times;
3. The founders of Hewlett-Packard flipped a coin to decide which name would appear first on the company;
4. Some animals – such as weasels, otters and kangaroos – are able to delay their gestation for months. This happens because the embryo in these species stops developing before attaching to the uterine wall;
5. Sigmund Freud once believed that cocaine could be used to treat morphine addiction;
6. NASA was forced to rename the sizes of the apparatus used by astronauts to pee. Instead of small, medium and large, they were called big, giant and huge because astronauts refused to choose the most appropriate size;
7. The exuberant coloration of flamingos comes from carotenoids, which are pigments that they obtain through certain foods, such as algae and shrimp;
8. You can estimate the temperature (in Fahrenheit) by counting the number of times a cricket chirps in 15 seconds and adding the number 37;
9. In the United States, the pizza industry serves about 100 acres of pizza every day;
10. Scientists accidentally killed the world’s oldest animal while trying to examine it. It was a mollusk that was over 500 years old;
11. After each player makes three moves in a game of chess, there are 121 million possible paths for the game to take;
12. In the 14th century, French officials publicly executed a pig after it was accused of devouring a child;
13. A traditional Rubik’s Cube has (the unpronounceable number of) 43,252,003,274,489,856,000 different possible combinations. And, believe it or not, each of them can be solved in 20 moves or less;
14. Camels have three eyelids to protect their eyes from sand;
15. The oldest chewing gum in the world is at least 5,000 years old;
16. An ostrich’s brain is about the same size as one of its eyes;
17. The ideal height to drop a piece of buttered toast and have it land butter side up is 8 feet.