How Old Is The Oldest Living Bullmastiff?
owner experience affected mean age of death, with breeder dogs dying at 8.20 years and experienced owners who did not breed at 7.95 years. Northern American breeder dogs lived the longest. For breeder dogs, the Boerbel died the youngest at 4.50 years and the bull mastiff the oldest at 10.40 years (Table 6). Why do … Read more