I have a Lancashire Heeler who was sixteen last September, and she still goes for a walk everyday with the others - she was still being shown last October. Her mum was almost sixteen when I lost her and her dad was nineteen, grandad seventeen. Another of mine is almost fifteen and I lost one in September who was fifteen. We do breed rescue and often have dogs in for rehoming at ten or eleven, and people don't believe us when we say they could easily have another five or more years left.