I'm a new member. My main reason for joining this Board was to enquire as to owner experiences concerning how long their border collies have lived. My BC, Hamish, has been with me two months short of 17 years. While he no longer runs the fields at lightning speed, he still spends time with me on walks that are now yards, not miles, long. He has joint stiffness but he still has a strong appetite and normal body functions. All the literature on the net and library suggest a time span of between 12-14 years. Needless to say, he has proven those sources wrong. I would welcome anyone's experience on aging BCs.