The study of humanity from the perspective of two of the four main subfields of anthropology. Archaeology studies humankind through time, since the species' appearance in the evolutionary record until the historical era, and across the wide geographical range of hominins. Physical anthropology studies humankind as evolving from biological organisms in all of our variations stretching from the tropical to the polar regions and from pre-birth to death. Successful completion of this course satisfies the Cultures and Peoples requirement for graduation.