A "Toy Dog" refers to a small breed of dog that is typically bred for companionship rather than work. These dogs are known for their petite size, often weighing under 10 pounds. Popular breeds in this category include the Chihuahua, Pomeranian, and Yorkshire Terrier. Toy dogs are often favored for their affectionate nature and suitability for apartment living. Due to their small stature, toy dogs require special care, including attention to their diet and exercise needs. They are generally friendly and social, making them great pets for families and individuals alike. However, their small size can make them more vulnerable to injury, so supervision is important.