Australian Cattle Dog: The dog who holds the Guinness record for longest life span was an Australian Cattle Dog named Bluey, who lived to be 29 years old. Thatâs astounding. I donât know of any ACDs who have approached that record, but I do know this breed can live a good 12 to 15 years, sometimes longer.
Diabetes Mellitus is a major risk factor for Peripheral Arterial Disease. A leg turning black and cold may be a sign of severe arterial insufficiency resulting on gangrene. Also, another condition called Venous Insufficiency may cause the leg to turn dark red or bluish when the person is in a sitting or standing position. Gangrene.
â¢tear in the esophagus from violent vomiting (Mallory-Weiss tear) A black stool caused by food, supplements, medication, or minerals is known as false melena.. Iron supplements, taken by many women to combat iron-deficient anemia, may cause stools to be black or even greenish in color. Multivitamins that contain iron may also have the same effect.