In fact, when averaged across even the last 500,000 years, it is clear that our brains have experienced an extraordinary increase in size, which has also occurred in association with a marked change in neurocranial shape. Most notably, we have evolved proportionally larger and more anteriorly positioned temporal poles, an expanded precuneus and parietal surface, and a much wider and more anteriorly positioned frontal cortex, which have contributed to the uniquely globular, or bulbous, craniofacial shape that defines us as anatomically modern Homo sapiens.
