The Japanese Bobtail is a bree of cat with an unusual 'bobbed' tail more closely resembling the tail of a rabbit than that of an ordinary feline. The short tail is a cat body type genetic mutation caused by the expression of a recessive gene. Thus, so long as both parents are bobtails, all kittens born to a litter will have bobtails as well. Unlike the Manx and other cat breeds, where genetic disorders are common to tailless or stumpy-tails, no such problem exists with the Japanese Bobtail.