Trivia: What anatomical structure does a Manx cat lack?
The correct answer is Tail
So why is this answer correct? : The Manx is the only cat breed born without a tail. The bobbed tail comes from a mutation, though not necessarily a natural one. Many geneticists believe that people who wanted the tailless feature continued to breed cats with that mutation until it was widespread throughout the breed. However, the short tail is also known to cause some health problems, like incontinence, due to the lack of supportive vertebrae.