I've had more seniors than these 4 , they are all ddb , the red masked pup in the last pic is sitting in front of her great grandmother , the one above is her great grand uncle , the one above that is her aunt , the top one her mother , the pup lived only to 8-9yrs , her mother and aunt 11yrs , her grandmother and grand uncle lived to 12 .... her other uncle is alive today at 13 ....... the great grandmopther and great grand uncle were beefy t pups bred to a pepignon bitch , the old dogues definitely lived longer , even with the worse hips ......I bred to the pups sire when he was 10yrs ... I believe beefy t threw some long lived dogues , those pepignon bitches did also ........a lot of health issues have been linebred/inbred on in the search of a specific type ........ I've had some 10 plus red masked also , they don't get as gray ...........