
I read a recent scientific report that said that good dogs have a longer life expectancy than bad dogs. No kidding, right? I know I've wanted to ring a couple bad dog's necks in my day.
Well, this study was talking about natural life expectancy (not owner induced premature departure). These researchers were trying to figure out how animal disposition may have evolved. They tested whether "proactive personalities" (high levels of activity, boldness, and aggression) are related to a fast “pace of life” (high rates of growth, mortality, and energy expenditure). They found that a dog's personality can greatly influence it's life span.
Before I tell you about the data, a couple interesting things about dogs to keep in mind: First, all dog breeds are the same species. That means that a hairless chihuahua and an old English sheep dog are the same species. It boggles my mind that such genetic variation can exist with in one species. For comparison, think about people. We humans like to think we are so unique. We may be a little taller or shorter or thinner or fatter or have a slightly different color hair than the guy next to us, but really, we all kind of look the same. Not so for dogs. Secondly, it's a pretty well established fact that little dogs live longer than big dogs. This study took that into account and did some fancy statistical normalizations to even the playing field in that respect.



I think this is an interesting finding even if it isn't all that surprising. It's pretty well accepted that people who are constantly stressed out or angry all the time or even people who don't get enough quality sleep can develop a variety of health problems that could shorten their life expectancy. What is interesting to me is that this trend seems to be naturally present in dogs - animals who wouldn't necessarily have all the reasons to be stressed, angry, tired, etc. that people may have. Dogs have different inherent "pace of life" levels that aren't necessarily based on their preset circumstances. And just the way that they approach life in general can have a big impact on their overall life expectancy. It's another classic example of your quality of life being an intricate combination of your genetics and your environment.

So what about you? Are you a good dog or a bad dog? Is your approach to life affecting your quality of life (or even your life span)?


Case in point... Rob took this one of several trucks that got swept away and ended up in a river bed. 





You can't tell from this picture, but right behind that tree line runs a little river. 


