She's two years old and measures just 6 inches from the floor to shoulder. The munchkin cat, Fizz Girl, is a special breed cat owned by a woman in San Diego. Fizz Girl, according to the Associated Press, is featured in the Guinness World Record 2012 Book as the shortest living cat. She weighs four pounds 2.3 ounces. By the way her mother's name is Fizz Fuzz and her littermate is named Fizz Bo. You can go to this site for more information.