Many of a cat's bones are found in its tail. A cat's tail held high means happiness. A twitching tail is a warning sign, and a tail tucked in close to the body is a sure sign of insecurity. Nostradamus the French Astrologer, 1503-1566, had a cat named Grimalkin. A group of adult cats is called a clowder.
Cats can get bored.
They show their boredom by excessive licking, chewing, or biting. The different types of tabby patterns that are seen in domestic cats also occur in wild cats. An adult cat has thirty teeth and around twelve whiskers. A cat's whiskers, called vibrissae, grow on the cat's face and on the back of its forelegs. The whiskers are thought to be a kind of sensor to help a cat gauge the space it wants to go through.