Lucy, a mini Yorkshire terrier, is the world’s smallest working dog. Weighing in at a mere pounds, she is a therapy dog through the Leashes of Love program. Rescued from a shelter, she now visits nursing homes in the New Jersey area.
This photo is labeled as 'Happy Holly' the short-haired Jack Russell Terrier --- (Though, if you ask me, this is not a pure Jack Russell. It clearly looks mixed with Cairn Terrier or even a Westie, based on the shorter legs & smaller, pointier ears.