Breed Has A Big Influence On Dog Personality, But It's Not A Predictor

Is your pup stubborn or agreeable? Trainable or insecure? Turns out breed and genetics plays a big role, maybe even more than environment. Early socialization is still very important. In puppies, this is generally between 3 and 14 weeks. Puppies not exposed to adults or other animals during this critical period do tend to be more insecure, aggressive, and less easily trained.