Final answer:
Paleoanthropology is the sub-field of biological anthropology that uses fossil records to study the anatomy and behavior of ancient human relatives.
Step-by-step explanation:
The sub-field of biological anthropology that uses the fossil records to examine the anatomy and behavior of our human ancestors from the past is known as paleoanthropology. This field of study looks into the fossil evidence of humanity’s ancestors along with ancient material culture, such as tools and other artifacts, to form hypotheses about human evolution.
Paleoanthropologists assess the physical morphology of skulls and other skeletal remains to understand significant evolutionary developments throughout human history.