3. Jack Russell Terrier
The Jack Russell was bred as a working farm dog, and it always wants to be in motion.
Owners of Jack Russell dogs need to make sure that their pets get plenty of exercise every day.
Otherwise, the dogs can become restless and irritable, and they might start to chew up the house.
The stubborn streak of a Jack Russell dog can make him tough to train, and his high prey drive can lead him to take on other larger dogs.
The Jack Russell can be hurt in these scuffles, so keep him leashed when in a park or other public place where other dogs can be present.
Unless taken in hand early on, the Jack will assume he is the alpha in any group and will act like it. This can lead him to act aggressively toward strange dogs and people, and many Jacks have little patience for children.
In order to make a Jack Russell a well-behaved member of your family, you need to start his training as early as possible. The dog must be taught to respect all humans, even the smallest child.