The Chihuahua is a small dog breed known for its tiny size and big personality. Originating from Mexico, these dogs typically weigh between 2 to 6 pounds and stand about 6 to 9 inches tall. They come in various colors and coat types, including short-haired and long-haired varieties. Chihuahuas are known for their loyalty and can be quite protective of their owners. They are often described as alert and lively, making them good companions. Due to their small size, they are well-suited for apartment living, but they still require regular exercise and socialization to thrive.