The Chihuahua was brought into a London animal home two years ago with a skin disease so severe that she had to be hand-reared by a shelter employee.
Now the 2½ pound rescue dog has been filmed bounding after sheep several times her size, chasing them around a small enclosure in southern England.
Her owner, Ali Taylor, says the video released by the Battersea Dogs & Cats Home is an attempt to "prove that rescue dogs really can do anything."
But she says you shouln't try sending your own Chihuahua chasing after sheep without "supervision from an expert."
