Protecting the Black Russian Terrier. This Breed was created by Scientist and Geneticists not Breeders, they found that by Breeding Color certain features of the Breed were affected by this such as Nervous System, Temperment, and Jaw Structure. We are asking that the BRT's of color not be bred or shown so as to not compromise the integrity of our Beloved Breed. BRT's of color should be companions only.