Nibi

Two-Tailed (煮浸し Nibi) are a race of two tailed cats. These cats have been mutated in some way shape or form, however they now can comprehend human speech, and communicate through telepathy. Much like how the Birkans, Shandians, and Skypieans are related, the Two-Tailed, and Whispering Hounds, and Two-Tailed are related. This race by unknown means, can forcibly grow, which by them is called "Evolution". This is their "defensive mechanism" of sorts, though unknown how it came to be.