Scientific work at the site, which lies 42 km south-west of
Beijing, is still underway. So far, it has led to the discovery of the
remains of Sinanthropus pekinensis, who lived in the Middle Pleistocene, along with various objects, and remains of Homo sapiens sapiens
dating as far back as 18,000–11,000 B.C. The site is not only an
exceptional reminder of the prehistorical human societies of the Asian
continent, but also illustrates the process of evolution.