J. S. Weiner himself noted: “Behind it all we sense, therefore, a strong and impelling motive. . . . There could have been a mad desire to assist the doctrine of human evolution by furnishing the ‘requisite’ ‘missing link.’. . . Piltdown might have offered irresistible attraction to some fanatical biologist.”
Piltdown is significant in that it shows that there are instances of deliberate fraud in paleoanthropology, in addition to the general process of knowledge filtration.
Finally, there is substantial, though not incontrovertible, evidence that the Piltdown skull, at least, was a genuine fossil. The Piltdown gravels in which it was found are now thought to be 75,000 to 125,000 years old. An anatomically modern human skull of this age in England would be considered anomalous.
Chapter 9 takes us to China, where in 1929 Davidson Black reported the discovery of Peking man fossils at Zhoukoudian (formerly Choukoutien). Now classified as
Homo erectus,
the Peking man specimens were lost to science during the Second World War. Traditionally, Peking man has been depicted as a cave dweller who had mastered the arts of stone tool manufacturing, hunting, and building fires. But a certain number of influential researchers regarded this view as mistaken. They saw Peking man as the prey of a more advanced hominid, whose skeletal remains have not yet been discovered.
In 1983, Wu Rukang and Lin Shenglong published an article in
Scientific
American purporting to show an evolutionary increase in brain size during the 230,000 years of the
Homo erectus
occupation of the Zhoukoudian cave. But we show that this proposal was based on a misleading statistical presentation of the cranial evidence.
In addition to the famous Peking man discoveries, many more hominid finds have been made in China. These include, say Chinese workers, australopithecines, various grades of
Homo erectus,
Neanderthaloids, early
Homo sapiens,
and anatomically modern
Homo sapiens.
The dating of these hominids is problematic. They occur at sites along with fossils of mammals broadly characteristic of the Pleistocene. In reading various reports, we noticed that scientists routinely used the morphology of the hominid remains to date these sites more precisely.
For example, at Tongzi, South China,
Homo sapiens
fossils were found along with mammalian fossils. Qiu Zhonglang said: “The fauna suggests a MiddleUpper Pleistocene range, but the archeological [i.e., human] evidence is consistent with an Upper Pleistocene age.” Qiu, using what we call morphological dating, therefore assigned the site, and hence the human fossils, to the Upper Pleistocene. A more reasonable conclusion would be that the
Homo sapiens
fossils could be as old as the Middle Pleistocene. Indeed, our examination of the Tongzi faunal evidence shows mammalian species that became extinct at the end of the Middle Pleistocene. This indicates that the Tongzi site, and the
Homo sapiens
fossils, are at least 100,000 years old. Additional faunal evidence suggests a maximum age of about 600,000 years.
The practice of morphological dating substantially distorts the hominid fossil record. In effect, scientists simply arrange the hominid fossils according to a favored evolutionary sequence, although the accompanying faunal evidence does not dictate this. If one considers the true probable date ranges for the Chinese hominids, one finds that various grades of
Homo erectus
and various grades of early
Homo sapiens
(including Neanderthaloids) may have coexisted with anatomically modern
Homo sapiens
in the middle Middle Pleistocene, during the time of the Zhoukoudian
Homo erectus
occupation.
In Chapter 10, we consider the possible coexistence of primitive hominids and anatomically modern humans not only in the distant past but in the present. Over the past century, scientists have accumulated evidence suggesting that humanlike creatures resembling
Gigantopithecus, Australopithecus, Homo erectus,
and the Neanderthals are living in various wilderness areas of the world. In North America, these creatures are known as Sasquatch. In Central Asia, they are called Almas. In Africa, China, Southeast Asia, Central America, and South America, they are known by other names. Some researchers use the general term “wildmen” to include them all. Scientists and physicians have reported seeing live wildmen, dead wildmen, and footprints. They have also catalogued thousands of reports from ordinary people who have seen wildmen, as well as similar reports from historical records.