1. Cats are the most popular pet in the United States: There are 88 million pet cats and 74 million dogs.
2. There are cats who have survived falls from over 32 stories (320 meters) onto concrete.
3. A group of cats is called a clowder.
4. Cats have over 20 muscles that control their ears.
5. Cats sleep 70% of their lives.
6. A cat has been mayor of Talkeetna, Alaska, for 15 years. His name is Stubbs.
7. And one ran for mayor of Mexico City in 2013.
8. In tigers and tabbies, the middle of the tongue is covered in backward-pointing spines, used for breaking off and gripping meat.
9. When cats grimace, they are usually "taste-scenting." They have an extra organ that, with some breathing control, allows the cats to taste-sense the air.
10. Cats can't taste sweetness.
11. Owning a cat can reduce the risk of stroke and heart attack by a third.
12. Wikipedia has a recording of a cat meowing because why not?
13. The world's largest cat measured 48.5 inches long.
14. Evidence suggests domesticated cats have been around since 3600 B.C., 2,000 years before Egypt's pharaohs.
15. A cat's purr may be a form of self-healing, as it can be a sign of nervousness as well as contentment.
16. Similarly, the frequency of a domestic cat's purr is the same at which muscles and bones repair themselves.
17. Adult cats only meow to communicate with humans.
18. The world's richest cat is worth $13 million after his human passed away and left her fortune to him.
19. Your cat recognizes your voice but just acts too cool to care (probably because they are).
20. Cats are often lactose intolerant, so stop givin' them milk!
21. Basically all cartoon cats lied to us: Raw fish is off the table for cats as well.
22. The oldest cat video on YouTube dates back to 1894 (when it was made, not when it was uploaded, duh).
23. In the 1960s, the CIA tried to turn a cat into a bonafide spy by implanting a microphone into her ear and a radio transmitter at the base of her skull. She somehow survived the surgery but got hit by a taxi on her first mission.
24. The technical term for "hairball" is "bezoar."
25. Female cats are typically right-pawed while male cats are typically left-pawed.
26. Cats make more than 100 different sounds whereas dogs make around 10.
27. A cat's brain is 90% similar to a human's — more similar than to a dog's.
28. Cats and humans have nearly identical sections of the brain that control emotion.
29. A cat's cerebral cortex (the part of the brain in charge of cognitive information processing) has 300 million neurons, compared with a dog's 160 million.
30. Cats have a longer-term memory than dogs, especially when they learn by actually doing rather than simply seeing.
31. Basically, cats have a lower social IQ than dogs but can solve more difficult cognitive problems when they feel like it.