How long do dogs live?
Most dogs live about 10 to 13 years. Small breeds often live 14 years or more, while large breeds such as Great Danes typically live 7 to 10 years.
Unlike most animals, where larger species live longer, smaller dogs usually outlive bigger ones. Researchers think large breeds age faster, perhaps because they grow so quickly. Chihuahuas, Jack Russell Terriers and Toy Poodles are among the breeds known for long lives.
Genetics, diet, exercise, weight and veterinary care all affect how long a dog lives. Keeping a dog at a healthy weight is one of the most effective ways to extend its life. Mixed-breed dogs often live slightly longer than purebreds of the same size.
Dog years
The old rule that one dog year equals seven human years is not accurate. Dogs mature very quickly in their first two years, so a one-year-old dog is roughly like a teenager. After that, aging slows, and it differs by size.
Did You Know?
The oldest dog with a verified age was Bluey, an Australian cattle dog who lived to 29 years and 5 months and died in 1939.