Rupert is one of the largest cats in the world, weighing 20 lbs. But he is not fat, just very large. Rupert is a Maine coon cat, a breed quite young and still growing.
A three-time cat of the year in his native Australia, Rupert is said by cat competition judges to be among the biggest Maine coon domestic cats they have ever seen.
Maine coon cats are known as the breed which produced some of the biggest domestic felines.
Native to the U.S. state of Maine, they are distinctive for their long, heavily-furred tails, and can grow to over 40 inches from nose to tail.