Jack Russell Terriers #3 Breed In Dog Aggression Study
August 31st, 2008Jack Russell Terriers Ranked #3 Breed In Dog Aggression Study
By now you must be thinking… “Where the hell are all the big ferocious dogs?” According to a recent study done by researchers from the University of Pennsylvania in July of 2008 — the top three most aggressive breeds (in order) are the Dachshund, the Chihuahua and the beloved “Eddie” the dog from from the Frasier sitcom - the Jack Russell Terrier.
I know, I know… its unbelieveable that the Pitbulls, Rottweilers, and Dobermans are not taking the Top 3 spots and at first I was dumbfounded. But the more I study the breeds the more it makes sense that the smaller dogs could actually be more aggressive than the larger dogs.
Hear me out…
If you take into consideration that this is a study about “aggression” — NOT a study about “dog attacks” it will put it all in perspective for you (as it did me). Aggression and attacks are of course too completely different things.
Look at it this way - the aggressive behavior study takes into consideration the number of times the breeds “attempted” to bite people or other animals and NOT the actual number of actual bites. In smaller dogs, the aggression levels (attempt levels) were as high as 20% towards strangers and 30% toward unfamiliar dogs.
Until now, most studies only used actual dog bite statistics to analyze. And let’s face it — headlines like these never make the news:
“Child Attacked & Mauled by Vicious Chihuahua!”
Or
“Wild Pack of Weiner Dogs Terrorize Neighborhood”.
When you really think about it … you can see that the majority of the snapping, and “near biting” experiences usually are from the smaller dogs. At least I can say this has been my experience. Granted, a Chihuahua may have never put anyone in the hospital - but he certainly may have “tried to” more often than the bigger breeds of canine!
Back to the Jack Russell Terrier
“Moose” aka “Eddie” is pictured below with actor Kelsey Grammer, star of the hit comedy series “Frasier”. During the height of Frasier’s popularity, Moose received more fan mail than any of his human co-stars!

Again, a popular TV dog and the demand for the breed goes up as well. People see the loveable dog on TV and think theirs will behave the same way. They do not study the breed at all to even see if it is a fit for their family or lifestyle. Jack Russells are known to have extremely high amounts of energy.
They are considered spirited and obedient, yet absolutely fearless. Experts say that they can be a slightly difficult breed to train and need a firm, experienced trainer. In other words, this is not the type of doggie you just go out and buy for your kids to train and help them learn some responsibility.
Jack Russells think they are a BIG dog in a LITTLE dog’s body. And did you know they are climbers? They can climb over fences and easily jump five feet.
The lesson here is — do your homework on the breed you THINK you want — before you even ponder bringing a dog into your household.
Next up — the top three breeds scoring ”average” or “below average” marks for hostility towards strangers.
Jack Russell Terriers Ranked #3 Breed In Dog Aggression Study







