we had a small rottie (85lbs) that lived until she was 13, had to put her down due to back problems (discs were compressing on nerves in her spine causing her to lose the ability to use her hind legs) or she probably would've lived a lot longer.. tried a ton of things to no avail/ Wife had her since she was a pup, i met her about when she was 3.. loved that dog, great with kids, excellent demeanor, and yet protective as well..

we'll probably get another one in the near future