Who are the smartest dogs in the world?
The K9 Superstars are considered some of the smartest dogs on Earth. The K9 Superstars are a couple of Border Collies owned and trained by celebrity dog trainer Charlotte Bryan. They are known for their appearances on feature films, TV shows, countless commercials and live performances. Check out the K9 Superstars on Instagram and Facebook @TheK9Superstars.