Popular breeds like the Golden Retriever and Bernese Mountain Dog are particularly prone to cancer. Again, these lifespans are heavily affected by breed.Īs dogs get larger, they are more likely to be affected by difficult-to-manage arthritis and certain types of cancer. Large-breed dogs have a slightly shorter lifespan than medium breed dogs, at 9–12 years. Here are some popular medium-size dog breeds and their average lifespans: Bulldogs, for example, are often plagued with health issues due to their snub-nose design, while the hardworking Australian Shepherd has fewer genetic disease predispositions and can live to be 15 or older. Medium-size dog lifespans and diseases of concern vary from breed to breed. 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 dogs align more with the overall average dog lifespan of 10–13 years. Here are some popular small dog breeds and their average lifespans: Small dogs are also very prone to dental disease, which can complicate these other illnesses. But as these long-life dogs age, they are more prone to liver, kidney, and adrenal disease, as well as degenerative heart disease. Small-breed dogs tend to have the longest lifespan, averaging 10–15 years. The average lifespan for dogs is between 10–13 years, though there is variability among breeds and sizes. For example, brachycephalic dogs such as the English Bulldog are more prone to heatstroke and respiratory-related death due to their small trachea. Certain breeds are also purposefully bred to have traits that, as an unfortunate result, may also lead to shortened lifespans. Mixed-breed dogs have a reduced risk of these diseases, which likely contributes to their increased lifespan. Purebred dogs are more at risk for specific hereditary diseases because they are bred by other dogs with similar genes. ![]() Genetics also play a huge role in life expectancy for dogs. There also seem to be some differences in the types of illnesses experienced by different-sized breeds. ![]() One possible reason might be that common medical conditions that dogs acquire as they age (such as incontinence and mobility issues) may be more difficult to manage in larger dogs and lead to euthanasia sooner. The cause for this is not well established normally, smaller mammal species have shorter lifespans than larger ones. In general, smaller dog breeds live longer than larger dog breeds. So it’s no wonder that there are significant differences in the lifespan of a Chihuahua versus a Great Dane. As a species, the domestic dog is incredibly diverse in size, build, and appearance, thanks to human intervention. So if you ever look at your pup and wonder, “how long do dogs live?” here’s how you can estimate-and how you can ensure your best friend is around for as long as possible. There’s a lot to know about the dog lifespan. When it comes to knowing how old your dog is, calculating “dog years” just doesn’t cut it anymore- studies show that a dog’s lifespan can vary significantly with breed and size, and there are other factors at play that we still don’t fully understand.
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