This PhD degree in Biological Anthropology is normally obtained after three years of study (five years part-time) on an approved subject within the field of Biological Anthropology, and includes an oral examination of the thesis and the general field of knowledge in which it falls. The thesis topic is normally proposed by the student and then decided between the student and the supervisor, and assistance is provided on elements of methodology and analysis, as well as with the written presentation. The thesis must satisfy the examiners that the candidate can design and carry out investigations, assess and interpret the results obtained, and place the work in the wider perspective of the subject. The PhD is assessed solely on the basis of the thesis examination. A PhD thesis in Biological Anthropology must represent a significant contribution to knowledge of not more than 80,000 words, excluding appendices, footnotes and bibliography. Students may be required to complete courses in research design, statistical analysis, interpretation, communication and University safety during their first Michaelmas term at Cambridge, and attend such lectures and courses as are considered appropriate by their supervisor. A PhD thesis in Biological Anthropology is expected to be a lucid, scholarly and substantial research contribution to knowledge on its topic, and to demonstrate a good understanding of the wider context of the chosen topic.