The aging profile of dogs varies according to their adult size (often determined by their breed): smaller dogs often live over 15–16 years (no longer than 20 years), medium and large size dogs typically 10 to 20 years, and some giant dog breeds such as mastiffs, often only 7 to 8 years.
Bobi was born on the 11th May, 1992, making him 30 years and 266 days old as of the 1st February, 2023. The Guinness World Records verified his age via two separate Portuguese pet databases. There may be other dogs around the world older than Bobi, but currently Bobi is officially the world's oldest dog!
Medium-size dogs align more with the overall average dog lifespan of 10-13 years. But some medium-size dogs can be very long-lived; the oldest dog on record was a Rafeiro do Alentejo named Bobi, who's 30 years old and counting! Medium-size dog lifespans and diseases of concern vary from breed to breed.
Bluey, an Australian cattle dog, entered the Guinness Book of World Records by living to the ripe old age of 29 years and 5 months, setting the record for oldest dog ever. The record was set in 1939 and still stands, but many Australian Cattle Dogs have tried to beat it by living good long lives of their own.
The average lifespan for small dog breeds ranges from 10 to 15 years, with some breeds living as long as 18 years.
Some of the longest living dogs have been known to live upwards of 20, even 25 years. To put that in perspective, 20 years old for a dog equates to 140 years old in dog years, which is an incredibly long lifespan (learn more about how to work out how old your dog is in human years here).
Feeding a healthy diet. Helping maintain a healthy weight. Encouraging breed- and age-appropriate physical and mental exercise. Taking our dogs for annual veterinary checkups and vaccinations.
One of the best ways to extend your dog's life is to regularly take them to the vet and groomer. Your vet has likely known your dog most of their life and can catch medical problems in routine visits before the issues progress.
Pearl, a 2-year-old Chihuaha, has officially been named the world's shortest living dog by Guinness World Records, the organization announced this week.
Flat-faced dog breeds, including French Bulldogs and Pugs, have the shortest life expectancy, a new study has found. According to vets at the Royal Veterinary College, brachycephalic dogs don't live as long due to the increased risk of breathing problems, skin fold infections and spinal disease they face.
In all size groups (small, medium, large, and giant), mixed breed dogs live longer than purebred dogs, although the difference is not that large. The study found that, on average, a mixed-breed dog lives for 14.45 years compared to 14.14 years for a purebred dog.
420 Dog years old, 60 yrs old b-day equivalent in human age.
The most frequent causes of dog death and pet disease among old dogs are cancer, cardiac failure, and renal (kidney) failure. In younger dogs, bloat, and immune-mediated diseases are significant.
Sex. Researchers found that female dogs are expected to live longer than male dogs, but really not by much — the average life expectancy for female dogs is 11.41 years, while the average life expectancy for male dogs is 11.07 years.
To estimate your dog's age you need to know its breed and that the first dog year is equal to 15 human years. The subsequent years of your dog are equal to 4-5 human years. As we said before, it all depends on what is the life expectancy of a dog with a certain breed but this is a good rough approximation.
The Sulcata Tortoise, Leopard Tortoise and the Egyptian Tortoise are among the longest-living pets and the chances of them outliving their owners are very high.
Great Dane: 7-8 years
This breed is nicknamed by Veterinarians the “heartbreak” breed for its numerous heart related diseases.
"We believe the relationship between a dog's body size and their lifespan may be caused by an evolutionary lag in the body's cancer defenses, which are unable to keep up with the rapid and recent selective breeding of bigger dogs," he said.