How Long Do Dogs Live?

When it comes to determining the age of your beloved pup, forget about calculating “dog years.” Recent studies have revealed that a dog’s lifespan can vary significantly based on its breed, size, and other factors that are not yet fully understood. So, if you find yourself looking at your furry friend and wondering, “how long do dogs live?” you’re in the right place. Here, we’ll explore how to estimate your dog’s lifespan and discover ways to ensure your best friend stays by your side for as long as possible.

The Average Dog Lifespan

chart depicting the average life span of different dog sizes

On average, dogs live between 10 to 13 years. However, it’s important to note that there is significant variability among breeds and sizes. The domestic dog species boasts incredible diversity in terms of size, build, and appearance, thanks to centuries of human intervention. This diversity is reflected in the differences in lifespan between a Chihuahua and a Great Dane.

Smaller dog breeds tend to live longer than larger ones, although the exact cause for this difference has yet to be established. Typically, smaller mammals have shorter lifespans than larger ones, but dogs seem to defy this pattern. One possible explanation is that as dogs age, managing common age-related medical conditions such as incontinence and mobility issues may be more challenging in larger dogs, leading to earlier euthanasia. Furthermore, different-sized breeds may experience varying types of illnesses.

Genetics also play a significant role in a dog’s life expectancy. Purebred dogs are more susceptible to specific hereditary diseases due to breeding practices that pair dogs with similar genes. On the other hand, mixed-breed dogs have a lower risk of such diseases, which likely contributes to their longer lifespan. Unfortunately, certain breeds have been bred for specific traits that inadvertently result in shorter lifespans. For example, brachycephalic dogs like the English Bulldog are more prone to heatstroke and respiratory-related death due to their small trachea.

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How Long Do Small Dogs Live?

Small dog breeds tend to have the longest lifespan, averaging between 10 to 15 years. However, as these little companions grow older, they become more susceptible to liver, kidney, and adrenal diseases, as well as degenerative heart disease. Small dogs are also highly prone to dental issues, which can complicate these existing ailments.

Here are some popular small dog breeds and their average lifespans:

  • Chihuahua: 14-16 years
  • Pomeranian: 12-16 years
  • Yorkshire Terrier: 11-15 years
  • Parson Russell Terrier: 13-15 years

How Long Do Medium-Size Dogs Live?

Medium-size dogs generally align with the overall average dog lifespan of 10 to 13 years. However, there are exceptions, as some medium-sized dogs can live exceptionally long lives. The oldest recorded dog, a Rafeiro do Alentejo named Bobi, lived to be 31 years old!

The lifespan and diseases of concern vary from breed to breed in medium-size dogs. For instance, Bulldogs often face 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.

Here are some popular medium-size dog breeds and their average lifespans:

  • French Bulldog: 10-12 years
  • Cocker Spaniel: 10-14 years
  • Bulldog: 8-10 years
  • Boxer: 10-12 years

How Long Do Large Dogs Live?

Large-breed dogs have a slightly shorter lifespan compared to medium-sized dogs, averaging between 9 to 12 years. Once again, this lifespan is heavily influenced by breed.

As dogs grow larger, they become more prone to challenging conditions such as arthritis and specific types of cancer. Popular breeds like the Golden Retriever and Bernese Mountain Dog are particularly susceptible to cancer.

Here are some popular large dog breeds and their average lifespans:

  • Golden Retriever: 10-12 years
  • Rottweiler: 9-10 years
  • Belgian Malinois: 14-16 years
  • Bernese Mountain Dog: 7-10 years

How Long Do Giant Dogs Live?

Towering giant-breed dogs have the shortest average lifespan, ranging from 8 to 10 years. Unfortunately, a 6-year-old Great Dane is already considered a senior pet, given the wear-and-tear their joints experience. Giant breeds are also more susceptible to bone cancers and neurologic diseases compared to smaller dogs.

Here are some popular giant dog breeds and their average lifespans:

  • Great Dane: 7-10 years
  • Irish Wolfhound: 6-8 years
  • Newfoundland: 9-10 years
  • Saint Bernard: 8-10 years
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How to Help Your Dog Live Longer

Do Your Research

Given that dog lifespans vary greatly by breed, it’s crucial to conduct thorough research if you have a specific breed in mind. Selecting a responsible breeder who prioritizes their dogs’ health is of utmost importance. Responsible breeders will conduct health screenings and genetic tests on their breeding dogs to identify common diseases. Understanding the lifespan and health concerns of your puppy’s relatives can help you make an informed decision.

While mixed-breed dogs may have longer lifespans than some purebred dogs, it’s worth noting that certain designer breeds, initially created for improved health, now face their own specific issues due to excessive breeding. Therefore, the same standards should be applied when choosing a breeder for designer breeds.

Mixed-breed dogs from shelters often have diverse pedigrees that mitigate some breed-specific risks. However, breed-related illnesses can still arise. In such cases, DNA testing can provide valuable insights into your shelter pup’s genetic background, including the presence of genes associated with common diseases. By knowing more about your dog’s ancestry, you can anticipate potential health issues.

Follow Your Vet’s Guidance

It is essential to adhere to your veterinarian’s preventative health recommendations. Vaccinations, as well as flea, tick, and heartworm prevention appropriate for your location, protect your pet from communicable diseases.

Routine testing for intestinal and blood parasites should be conducted annually. Additionally, consider discussing routine bloodwork panels with your veterinarian to assess liver, kidney, and bone marrow health. Establishing baselines in young dogs and monitoring them annually as they age can aid in the early detection and management of diseases. As dogs enter their senior years, additional testing becomes crucial to identify age-related issues.

Certain breeds, such as Golden Retrievers, may benefit from routine imaging such as X-rays and ultrasounds to monitor for specific types of cancer as they age.

Keep Your Dog at a Healthy Weight

Maintaining a healthy weight is crucial for extending your dog’s lifespan. A study conducted on Labrador Retrievers found that dogs kept at a healthy body condition lived an average of two years longer than their overweight counterparts.

To ensure a healthy weight, provide measured meals for your dog and keep track of treats and snacks. Adjust their food intake as their metabolism changes over time. If you’re unsure whether your dog is at a healthy weight, consult your veterinarian for guidance.

Featured Image: iStock/Halfpoint

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