In the eastern provinces of Thailand, poor roads kept a local hunting and guard dog isolated for centuries, and Thai documents describe it roughly 360 years ago. That dog is the Thai Ridgeback, a medium-sized, muscular primitive breed known for the strip of hair along its back that grows against the rest of the coat. It hunted, escorted carts and watched over villages, and it remains rare outside Thailand. The AKC records the breed through its Foundation Stock Service.
Thai Ridgebacks wear a short, smooth coat in red, black, blue or pale fawn. Many are deeply loyal to their family, reserved with strangers, athletic, excellent jumpers and highly independent. They tend to suit experienced adopters who can offer daily exercise, secure tall fencing, early socialization and patient, consistent training rather than a dog that simply wants to please.