Small breeds refer to dog breeds that typically weigh less than 20 pounds and stand under 16 inches tall at the shoulder. These dogs are often favored for their compact size, making them suitable for apartment living and easy to transport. Popular small breeds include the Chihuahua, Pomeranian, and Yorkshire Terrier. Despite their size, small breeds can have big personalities. They are often energetic, playful, and affectionate, making them great companions. However, they may require special care, such as gentle handling and appropriate training, to ensure they thrive in a home environment.