Find opens debate about whether man's earliest ancestors came from Asia and were diurnal or nocturnal CHICAGO--A skull and jawbones recently found in China is the oldest well-preserved primate fossil ever discovered ? as well as the best evidence of the presence of early primates in Asia. But the fossil raises the tantalizing possibility that remote human ancestors may have originated in Asia and stirs up debate about the nature of early primates. In the words of Robert D. Martin, Provost and Vice President of Academic Affairs at Chicago's Field Museum, "It was once thought that primates originated in North...
