Small dogs live twice as long as large ones. Free Technical Library News

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Small dogs live twice as long as big dogs

23.12.2023

Whales outperform mice in longevity, cats outperform fish. Among feathered birds, large representatives have a longer lifespan than their smallest counterparts. However, in the dog world the opposite is true. Long-term studies show that small breeds of dogs live much longer than their large counterparts.

New research led by biology professor Mark Elgar from the University of Melbourne's School of Biological Sciences confirms a surprising phenomenon in the dog world, where size has a direct impact on their lifespan. Understanding this pattern allows us to better care for our four-legged friends and tailor our approach to their health depending on the breed.

The larger the dog, the shorter its lifespan. Large dogs such as St. Bernards have a lifespan of 5 to 8 years, while smaller breeds typically last 12 to 15 years.

Recent dog research shows that large breed dogs age faster. Here you can use the expression “a small dog becomes an old puppy.”

Scientists analyzed the lifestyle and lifespan of 74 dog breeds in North America. They found that large dogs, due to their size, put a strain on all physiological processes, which leads to faster wear and tear on the body. Experts drew an analogy with cars, noting that modern cars usually function well for eight or nine years, after which wear and tear begins. The speed of this process varies among different manufacturers. It’s the same with dogs, say biologists.

The lifespan of dogs is also affected by their lifestyle. Large breeds are often used for hunting, security or police work, increasing the risk of premature death. This also has an impact on overall statistics.

According to recent data, the average lifespan of large dog breeds is about 7 years, while that of small breeds is 14 years.

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