There are more than 500 million domestic cats, with 40 different breeds.
Cats are the most popular pet in the northern part of the American continent: there are 73 million cats, compared with 63 million dogs. More than 30% of homes in North America have one.
Your cat's urine shines in the dark when you illuminate it with black light. If you think your cat is marking territory - beyond the tremendous smell - you can ask the CSI and look for fluorescence.
Like fingerprints, the nose of cats has a unique pattern.
Cats repeatedly tread on an area or its owner to mark its territory. As felines sweat through their paws, they rub it as a marking mechanism. Similar to when dogs pee on you, but much more pleasant.
Cats communicate with the movement of their tails. For example: if a cat is close to you and waves its tail, it is the greatest expression of affection it can do. On the other hand if you shake it too hard, so much that it hits with it, it is in a bad mood, it is better that you leave it alone for a while.
And speaking of tails, only domestic cats can walk with their tails stretched up. Wild cats hold them horizontally or between their legs as they walk.
During her fertile life a cat can give birth to more than 100 kittens. A pair of cats can produce up to 420 thousand in seven years. A single cat that goes out to look for a beau can have a litter in which each child is from a different father.
And talking about kittens, they start to dream when they have a week to live.
The doors for cats were devised by the discoverer of the principles of gravity: Isaac Newton