Yup.
Dogs seem to be the inverse of the rule bigger animals usually live longer lives.
Giant breeds like Saint Bernards and Great Danes can live less than a decade.
Medium sized breeds can live up to 15 years.
Small sized breeds can live up to 20 years.
I'm not BS'ing here. That dog was the longest lived dog I know of and she died gently and peacefully of natural causes. My sister's other dog lived to be 21 and they have no idea how old he was when they got him.
“Australian Cattle Dog, the world record for the longest living dog is an ACD named Bluey. Bluey passed away in 1939 at the ripe age of 29-years-old!”
I think a lot depends on how the dog is raised, fed, and cared for.
I had Rawly with me for 22 years, he was a Chow/Retriever mix about 90 pounds.
My son was 21 and my daughter was 19 when Rawly died.
I used to tell my kids they had better mind their manners, “I had that old man longer than I had them, so who would I get rid of first”, I think it scared them straight occasionally.
I have had Old Jack with me now for 18 years and he was about 3 or 4 (not real sure) when I got him.
Jack is a Black Lab/Newfoundland mix and he weighs 123 as of his last vet appointment.
He is failing now pretty quick, but he will be with his daddy till the last.