2. Dachshund
The Dachshund, affectionately known as the “wiener dog,” is celebrated for its impressive longevity, often reaching the age of 16 or more. Their elongated bodies and spirited nature make them stand out among similarly sized breeds. While their size contributes to their long lifespan, Dachshunds also have a strong genetic disposition for health. In comparison to other small breeds, they tend to have fewer hereditary ailments, making them a cherished choice for families seeking a loyal and enduring pet.