Other disciplines that are often integrated with archaeology include: geology, geography, ecology, history, etc.
Physical or Biological Anthropology.
Physical (aka Biological) anthropology deals with the physical and biological aspects of the primate order: humans, chimps, gorillas, monkeys, prosimians, etc., past and present.
Thus, some of the more specialized areas covered under this large subfield of anthropology include: primate biology and behavior, osteology (the study of bones), paleoanthropology (the study of old dead primates--human and non-human), skeletal biology, human variation and adaptation (which explores how various groups of humans adapted over time to different climates, altitudes, environmental conditions, etc. providing us with the diversity we see today), human growth and development, nutrition, genetics, etc.
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While forensic anthropology is an applied field, a large majority of forensic anthropologists are physical anthropology professors developing their careers in a university setting. The alternative to an academic career is the "applied" employment setting--meaning outside of the university. Many forensic anthropologists working outside of the academic setting are employed by agencies involved in various levels of investigative-type work, where they develop their careers in a laboratory setting - a well known employed agency is the FBI.
The academic setting:.
Professors' duties are divided into three categories: teaching, research, and service. Forensic anthropologists teach multiple courses in physical anthropology, conduct osteological research, and may consult on forensic cases as part of their service. In many areas of the US, there isn't a need for full-time human identification from skeletal remains. Meaning that there aren't people dying at such a rate that would employ a filed of forensic scientists - which would work on a daily basis. Realistically, in most situations a forensic anthropologist does not practice forensic anthropology all the time, or constantly.