My Jack Russell has become aggressive, what can I do?
My Jack Russell is a 3 year old male. He has not been fixed since our goal was to breed him but that never worked out. Recently he started getting more aggressive. When you get onto him for anything, after he returns to his kennel, he will growl and snap at you. Is there anything that can be done to change his behavior? Will getting him fixed help? I have two children, ages 13 and 10, and although he is normally very good with them I am afraid that he could bite one of them.