The Thai Ridgeback (Thai: ไทยหลังอาน, RTGS: Thai Lang-An) is a dog recently established as a standardized breed. The breed was formerly unknown outside Thailand, but is gaining notice in the Western world. They are also known as a. They are also known as a. Eyes are almond-shaped and brown but may be amber in blue dogs. The ears are set low and point slightly outward. The ears stand up progressively during the puppy growth period; they are not cropped. The other determines the size of the ridge, from none to very large (down to the side) the latter, the more the genes in the dog, the broader is the ridge.