Anthropology describes the scientific study of the origin, the behaviour, and the physical, social, and cultural development of humans. Forensic anthropologists are trained physical anthropologists who apply their knowledge of biology, science, and culture to the legal process. They identify human remains, along with pathologists, homicide detectives and other specialists. Age determination of unknown human bodies is important in the setting of a crime investigation or a mass disaster because the age at death, birth date, and year of death as well as gender can guide investigators to the correct identity among a large number of possible matches. Traditional morphological methods used by anthropologists to determine age are often imprecise.