The proverb sounds differently in different parts of mira
According to the myths of many cultures, cats have nine (sometimes seven) lives. Myths associated with the natural flexibility and swiftness cats with which they avoid life-threatening situations.
Also, the myth seems plausible because cats often land in the fall to all fours, because of their response and the ability to roll over in the air, although, of course, the cat may have been injured or even die after falling from a great height.
In fact, a cat, of course, do not have nine lives, but sometimes it can be reluctant to believe. Cats can fall from great heights and make jumps over a distance of seven times longer than their own tails.
In the US and Russia talk about cats, they have nine lives, but in Germany and Southern Europe lives they have only seven. Unhappy cat from Arab countries "have left" for only six lives.
via factroom.ru