Anecdotally, Chinooks live on average to 12-14. It is not uncommon to hear of 14+ year old Chinooks, but we do lose a small number earlier as well. Common causes of death include mobility issues (neurologic & orthopedic) that seem unrelated to hip dysplasia, and various types of cancer. Most anecdotal information on Chinooks with cancer is on dogs that are over 10 years old. I'm hopeful a formal longevity study will be launched soon to provide better information.