|Status||Captured and Sealed by Akatsuki|
The Three-Tailed Turtle, or Isobu (The name given by the Sage of Six Paths), is one of the nine Bijuus. It's only known jinchuriki is Yagura, the Fourth Mizukage.
Madara Uchiha claims that long ago the Sage of the Six Paths saved the world from the Ten-Tailed Beast and became it's jinchuriki. Before he died, he divided the beast into the Nine Bijuus. The Three-Tailed has made little appearance in the Manga but in the Anime is a major part of a plot. It was said to have come from Yagura, the Fourth Mizukage, but was released for some reason and hid in some place. In early parts of Part II, Tobi and Deidara captured the beast though most of the part where the capturing takes place was not showed.
Not much is known about it's abilities except that it has huge amounts of chakra and brutal strangth. Like other bijuus it is assumed to have the ability to utilize the Tailed-Beast Ball.