Not one, but TWO gorgeous special kitties! If I didn't have a large M*A*S*H Unit, I'd scoop those two lovelies up in a heartbeat. The correct term for their birth defect is "radial aplasia", or "radial hypoplasia". Aplasia means absence of bone in the limb, and hypoplasia means abnormal bending (basically). I detest the term "twisty cat" as it was coined by a particular nutcase in Texas who bred/breeds them. I'd like to not give her anymore noteriety! *sigh*...they are so like my sweetheart Kirby, and my RB dearly missed Willy.