The barghest resembles an oversized mastiff, either pure white or pure black. Its short fur lies flat on its body, creating the impression that its hide is naked, and spines protrude the length of its back. Its eyes shine red, and its teeth glow slightly in the dark because of luminescent bacteria in its saliva. It hunts alone or in pairs during breeding season; at other times it hunts in packs of twelve or more. Various corps have attempted to domesticate the barghest as a guard animal, but results so far have been hit-or-miss.