Their talking about a real dog.
Chihuahuas are as much descendants of the majestic wolf as other larger, more ungainly breeds...Actually, there's an article somewhere on FR about a service dog breeder in the UK who chose to mate a male chihuahua with a small female lab.He had a reason for this, but I forget precisely what it was, besides wanting a smaller service dog than a typical lab. A veterinarian who disagreed with his reasons was quoted as saying, "I'm surprised they didn't lose the chihuahua."