It’s no surprise the oft-quoted ratio on aging is a bunch of hooey, but the real answer is not simple.
Of course, it doesn’t take much to pierce the myth of the 7:1 ratio. Just look at all the humans out there who are 119 to 140 years old. Oh. Wait. There aren’t any. But 17- to 20-year-old dogs? Plenty of them.
So, what can take the place of that miscalculated ratio? Finally, some people are trying to figure it out. So far, they’ve figured out that it’s really complicated.
The problem is that smaller dogs tend to live a lot longer than larger dogs. Say you have a Chihuahua and a Great Dane growing up together. Over the course of their lives, the Chihuahua is aging slower than the Great Dane.
Go to Dogster.com for the rest of the story.