Why Is My Jack Russell Terrier So Aggressive Towards Other Dogs?

My JRT is so unfriendly towards other dogs. He begins barking uncontrollably and then when he is close enough to the dog, he takes a short sniff. After that, he throws himself at the other dog, exposing his teeth trying to bite the other dog. He wasn’t like this before and now he is 2.
yes i have tried to trian him !!

you may have tried to train him but the reality is he is not … if he is your first dog, no worries, he isn’t ruined or anything he just needs the right training and socialization … i bet he is under-exercised too … take your dog to training classes, do all three levels from beginner to advanced and you will see a change in your dog … being around all those other dogs in a controlled environment will help desensitize him to other dogs … next get exercising … jack russells need extreme exercise at least five days a week … tired to the point where they are not just panting, but to the point their tongue is hanging out the side of the dogs mouth … get an attachment for the back wheel of your bike (it has to be the back wheel or he can pull you off the bike) and ride your bike until he is panting and then turn around and run him home … you will have a completely more enjoyable jack russell if you follow the above suggestions …

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  • This Yahoo! User Is Suspended

    hes agressive because you didn’t TEACH him to be nice to other dogs.
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  • Natalie Olmo

    Well I’m not really a dog expert, But Jack Russel Terriers tend to be aggressive or hyper naturally.
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    I have many friends with this kind of dog

  • Tigg

    Poor obedience training by the owner. If you even bothered to train him at all.
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  • Clumsical of the !MC! Squad

    Because you need to TRAIN HIM.
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  • Kat

    Jack Russells are hunting dogs, this makes them aggresive. First, is he neutered? If not get him fixed. It would also help to take him to training classes where he learns to be socialble with other dogs.
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  • Kali

    Well I have to agree with everyone else you as unhelpful as they are you are the problem. I’m afraid I can’t really help you on here because this sort of behavior takes a long time to treat there are no quick fixes. Pay close attention to how you are reacting watch Ceasar Millan to understand the behavior the energy your going to need then watch Victoria Stillwall (Its me or the dog) to learn to correct it. Good luck!
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  • casey

    you may have tried to train him but the reality is he is not … if he is your first dog, no worries, he isn’t ruined or anything he just needs the right training and socialization … i bet he is under-exercised too … take your dog to training classes, do all three levels from beginner to advanced and you will see a change in your dog … being around all those other dogs in a controlled environment will help desensitize him to other dogs … next get exercising … jack russells need extreme exercise at least five days a week … tired to the point where they are not just panting, but to the point their tongue is hanging out the side of the dogs mouth … get an attachment for the back wheel of your bike (it has to be the back wheel or he can pull you off the bike) and ride your bike until he is panting and then turn around and run him home … you will have a completely more enjoyable jack russell if you follow the above suggestions …
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  • <dog on a rope>new age tra

    its a jack , what did you expect , they natural born killers. they have been used to hunt rabbits and rats for 100′s of years .
    training may help , good luck
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  • ?

    Should have gone to training CLASSES, That way he will progress with the other dogs and move on up to higher courses. He will learn to associate being around dogs with good things. (Praise, treats, games) and he will learn to listen to you in their presence.

    Take me and my Pug for example he can sometimes get excitable meeting a dog and if i tell him "Settle" he will immediately calm down and stop jumping about the other dog.

    It takes HARD work and training. Training isnt something you try one day and forget the next training comes into everyday life.

    Walking nicely.
    Waiting/Sitting at roads
    Waiting/sitting for meals
    Waiting/sitting after walks when removing their leads.
    Recall at a park or coming in from outdoors.

    Then of course you spend time training other things too.
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