The Boston Terrier originated in the United States. They are typically small, compactly built, well proportioned with erect ears, short tail, and muzzle. While originally bred for fighting, they were later down bred for companionship. The modern Boston Terrier can be gentle, alert, and well-mannered. Many still retain the spunky attitude of the typical terrier. Because of their short snouts, they tend to snort and snore.