The Most Aggressive Dog Breeds in the World Revealed
Here’s a report that’s set to put the cat amongst the pigeons.
New research has lead to a list of the top 33 most aggressive dog breeds being named.
And no, forget Rottweilers, Pit Bulls, Dobermans and Mastiffs for it is the little uns’ who come in highest on the aggression scale.
Dog lovers, much of what you are about to read we already know. We’ve spent most of the time trying to convince our non dog loving friends and families of these facts. But here goes anyway:
1) Previous studies into ‘most dangerous dog breeds’ have been based on hospital treatment stats for dog bites. Stats which are fundamentally flawed and skewed toward larger breeds, for they are the dogs who are likely to cause more serious injuries on the rare occasions when they do bite.
2) Small breed representatives are now hopping mad as it is THEIR breeds who are now under the spotlight. Welcome to the world of breed-type pigeon holing folks, it’s no fun is it?
3) Some breed reps are STILL too quick to slag off other breeds without seeing the irony of what it is they are doing. Step forward Joyce Summers, treasurer of the Rottweiler Club in Britain:
“I have lived with rottweilers for 40 years and they give nothing but love and affection. I am not surprised Jack Russells are up there near the top; they are yappy little things.”
Yappy little things? Oh. Dear.
As a Rottweiler owner I know what it is like to have your entire breed’s reputation called into question on the back of a few isolated incidents. As a dog lover, I have a keen understanding of the fact that individual characters within individual breeds are wide and varied. So for a Rottweiler rep to try and throw the Jack Russell under the bus like this is really rather dissapointing.
Some Jack Russells are yappy. So are some Rottweilers. Most Rottweilers are cool, calm, kind hearted dogs. So are most Jack Russells.
So here we go anyway. For what it’s worth, even though this new research throws up some unexpected dog breeds on the ‘most aggressive’ scale, and even though I already know that people will be running to this report for reference the next time their Rottie, Shepherd, Doberman, Mastiff etc is ignorantly labelled as ‘dangerous’, can I ask, nay, can I beg for some unity from dog lovers, please. We all love our dogs, our favoured breeds etc. But if we are going to start slagging off other people’s dog breed of choice at the merest hint of some negative or positive press coverage, we will, frankly, get what we deserve – that being, ALL dogs being tarred with the same brush.
They may be small, but new research found that one in five dachshunds have bitten or tried to bite strangers, and a similar number have attacked other dogs; one in 12 have snapped at their owners.
Known as sausage dogs for their elongated bodies, dachshunds have not, until now, had a fearsome reputation, although they were originally bred to hunt badgers in their setts.
However, they topped a list of 33 breeds which were rated for their aggression, after academics analysed the behaviour of thousands of dogs.
Chihuahuas, an even smaller breed, were the second most hostile, regularly snapping or attempting to bite strangers, family and other dogs. Another small favourite, the Jack Russell, was third.
In Illinois last week, Linda Floyd had to have her dachshund, called Roscoe, put down after the dog gnawed off her big toe while she slept. Mrs Floyd, 56, woke up too late because nerve damage from diabetes had left her with no feeling in her toes.
Dr James Serpell, one of the researchers, said smaller breeds might be more genetically predisposed towards aggressive behaviour than larger dogs.
“Reported levels of aggression in some cases are concerning, with rates of bites or bite attempts rising as high as 20 per cent toward strangers and 30 per cent toward unfamiliar dogs,” he added.
Until now, research into canine aggression has almost exclusively involved analysis of dog bite statistics. But the researchers said these were potentially misleading as most bites were not reported. Big dogs might have acquired a reputation for being aggressive because their bites were more likely to require medical attention.
The findings have angered owners of small breeds. Chris Moore, secretary of the Northern Dachshund Association, said: “As far as breeders in the UK are concerned, this is rubbish. It is not in the dogs’ nature. I have never been bitten in 25 years.”
Tony Fitt-Savage, president of the British Chihuahua Club, added: “I have had Chihuahuas for 30-odd years, and they’ve never put anybody into hospital. They can be a little bit stroppy.”
The study, published this week in the journal Applied Animal Behaviour Science, involved researchers from the University of Pennsylvania questioning 6,000 dog owners.
Breeds scoring low for aggression included Basset hounds, golden retrievers, labradors, Siberian huskies and greyhounds.
The rottweiler, pit bull and Rhodesian ridgeback scored average or below average marks for hostility towards strangers.
Joyce Summers, treasurer of the Rottweiler Club in Britain, said: “I have lived with rottweilers for 40 years and they give nothing but love and affection. I am not surprised Jack Russells are up there near the top; they are yappy little things.”
Highly Recommended: What dog owner wouldn’t want a piece of THIS action? – Get FREE dog food!
Related posts:
- The Top 10 Unhealthiest Dog Breeds Revealed
- Irish Staffordshire Bull Terrier type attacks child, lets include articles and pictures of Rottweilers!
- Study Finds Tail Docking Creates Aggressive Dogs
- Dutch Kennel Club in Rottweiler Breeding Experiment
- 5 Breeds Outlawed – Rottweilers, Pit Bulls, Dobermans, German Shepherds and Bull Mastiffs







The little uns are the worst for biting people!
I have been bitten twice, both times by a JRT type, little blighters!
Reply
If a survey is done and small breeds come out as the ‘bad guys’, they get labelled ‘yappy little things’ or ‘blighters’ or whatever fits the occasion. If large dogs get surveyed they are ‘too large for handling’, ‘aggressive’ or just ‘horrible dogs’ (does not seem to be used for the smaller ones so much as they look cuter to some).
My personal opinion is (and I do have dogs and I am not going to state large or small!) if the dog is aggressive, whatever the breed, it is aggressive. Animals get a raw enough deal in the world without labelling certain types for their aggressive nature.
Anyone with any knowledge about dogs knows that it is due to upbringing, life experiences (can be spoilt, abused etc) and how the dog is treated from a puppy that gives them the nature they have – NOT the breed and yes, even spoiling and too much love can make them aggressive.
The smaller guys here are getting the raw deal – just like the Rotties did a few years ago when there was a spate of some aggressive ones in the news that had actually killed (they were pets) children for no apparent reason, along with Pit Bulls etc.
Dogs, if treated right are wonderful. If not, they are labelled, put in a catagory and that sticks with them for life. Shame really.
Reply
As a dog breeder since the 1960s who has trained close to 3,000 dogs; I agree that there are more small dogs who are aggressive than large ones. I don’t agree with Ryan’s statement, “Most Rottweilers are cool, calm, kind hearted dogs. So are most Jack Russells.” The word, “calm” is not one I would apply to Jack Russel Terriers, or even to Parson’s Russel Terriers. [The latter stands higher in the leg] But if one is yappy, it’s probably due to boredom and lack of adequate excersise, as well as an owner who hasn’t established rules and boundaries. Jack Russels ARE a high energy breed. They ARE a breed that was bred to attack small animals. In the wrong household they are quite likely to become problem dogs. Of course similar can be said for Rotties. The differences are that though Rotties are a large and powerful breed which can easily inflict a great deal of damage if they are vicious; JRTs will become aggressive easier and with much less cause. And don’t discount the teeth and jaws of the JRT. The teeth are larger and the jaws more powerful then their body size would imply.
Reply
I think it’s funny to see all these stories on the agression of smaller dogs. As an owner of a male Dachshund and a male Jack Russel, I can relate to the statistics of my Dachshund. Now before everyone jumps on that comment of course my dachshundBor Jack Russel doesn’t walk around biting everything…They have their “days” just like any other dogs or humans. You can read the dogs body language and understand how he’s feeling. Anytime that they have lashed out I could alway tell by the way they were acting. It would be ridiculous to say that these two breeds of dogs should be avoided my dogs are the two most loving playful dogs in my mind. (they are both curled up on the chair with me sleeping) after my Jack Russel was fixed he was immediately much calmer and less agressive, I have not got around to getting my dachshund fixed yet but I’m more than willing to bet that he relaxes as soon as he is. As far as either one of the breeds being considered yappy I’m not to sure I can agree. Of course my dogs bark when they’re playing, believe someones getting hurt, think someones at the door, or need help as far as needing outside or retrieving a stuck toy but I can’t say I’ve heard them bark without a purpose. If it’s really that big of a deal if your dog is barking maybe you shouldn’t own a dog.
Reply