He's a Jack Russell. We are unsure wether he was interbred or not; would that affect anything?
Answers (2)
You can train him at a dog training class. Obedience class is what it's called isn't it? Anyways, go online, search a obedience class in a location near you, and go there. That is what they do. They help train your dog not to snarl, bite, fight, and be aggressive towards family members and other dogs.
I hope this helps! ;)
I've got a Jack Russell too. He's 105 years old, and he isn't aggressive like that. Although he does snarl at my puppies when he's eating his chopped beef. He is also very loud when he cries at night.