Researchers at the University of Bath, UK, may have found another means of biometrics identification. They scanned noses in 3D and categorized them by tip, ridge profile and the nasion, or area between the eyes. The researchers say there are six main nose types: Roman, Greek, Nubian, hawk, snub and turn-up. And since they are hard to conceal, the study says, noses would work well for identification in covert surveillance.