8/30/2011

Dogs' aging patterns vary based on their size, with bigger canines becoming seniors at about six years and smaller dogs staving off old age for about nine years, writes veterinarian Kristel Weaver. Dr. Weaver advises owners on caring for pets as they begin to show physical signs of aging, which can include arthritis, nuclear sclerosis and various lumps and bumps that may be benign or signal a serious health condition.

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