Gizmo is a Long-Haired Chihuahua that weighs 5 pounds.  I think of him as a miracle dog for exactly one week after he had gotten him he almost died.  He was attacked by another dog and at the time he was very small and only weighed 1.5 pounds.  The other dog almost snapped his neck and he had a severe neck injury that he still hasn't recovered from almost a year later.  He is truly a fighter and a special dog.