Click here to learn more.
Vetstreet. All rights reserved.
Vetstreet does not provide medical advice, diagnosis, or treatment. See Additional Information ›
A. The old “dog years” formula (one year of a dog's life is equal to seven years of human life) never really worked for any dog, based on a comparison of the general lifespan of humans vs.
dogs. Cats age at a more predictable rate than dogs do, mostly because we don’t see the range of size and body types we do in dogs, but the 1-to-7 formula doesn't work for them either.
Consider two 10-year-old dogs, a
Great Dane and a
Chihuahua. Under the 1-equals-7 formula, they’d both be considered the equivalent of a 70-year-old person. And while that’s probably not too far off the mark for the
Great Dane (10 years for a Dane is indeed near the outer edge of life expectancy), the
Chihuahua is likely still acting middle-aged.
But even the
Great Dane didn’t match the old formula when he was young. In the first year of his life, he would have attained most of his height, something no human 7-year-old ever does.
It’s more accurate to think of the first year of a dog’s life getting him just over the first big jump of adolescence, with the second year bringing him close to full adult maturity physically, although as in humans, mental maturity may still be on the horizon. From there, it really does depend on the kind of dog in question. I think it’s more important to focus on the individual dog, with the knowledge that size and breeding matter when it comes to aging. Roughly put, you can consider your dog to be a senior citizen at 7 if he’s that Great Dane, but not until 11-plus if he's the
Like this article? Have a point of view to share? Let us know!
Thank you for subscribing to Petwire. Look for the latest newsletter each Wednesday.
Whale-watching crews spotted the fourth
baby killer whale of the season in the
waters off Washington State.
It’s a scary thing to think about, but here’s
what you can do to prepare for choking,
seizures or other common…
You're not a bad pet owner if your dog
doesn't know sit, down or come. But
these commands can be really helpful.
Being overweight raises your feline’s risk
of serious problems like joint injuries,
diabetes and surgical…
Before you buy chicks or ducklings for
your kids' Easter baskets, make sure you
know what you're getting yourself…
Want to find out how well your cat or dog is digesting his food? Well, our vet says the proof is in your pet's poop.
The active and playful Devon Rex’s high cheekbones and slender build make her look like a top feline model.
If the video doesn't start playing momentarily,
please install the latest version of Flash.
Thank you for subscribing.