ocr: 2million reanago Present, Yunxinn 800.000 tor 600000 One of the last people alive who witnessed the discovery of the Peking man fossils at the Zhoukoudian caves, 88-year-old archaeologist Jia Lanpo revisits the site with his son, "Not much is left here now. We'd better leave it for future generations," he says. Among the remains of some 40 individuals, no complete skulls were found. Skulls from Yunxian, unearthed recently, offer the first look at the face of what may be Homo erectus in China. immediately challenged. Perhaps, other pale- the prospect of more fossil discoveries with ontologists ...