This small terrier comes from England and they don’t need a ton of exercise. They are well suited for apartment living and are friendly to just about everyone they meet. They live to be 12 to 15 years old and only grow to be four to six pounds. They do need to be watched around small children as they can get hurt but they do make a great companion dog. This is a great breed for people with allergies as they are hypoallergenic.