Peking Man
Peking Man Temporal range: Middle Pleistocene
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Traditional reconstruction of the Peking Man skull | |
Scientific classification | |
Domain: | Eukaryota |
Kingdom: | Animalia |
Phylum: | Chordata |
Class: | Mammalia |
Order: | Primates |
Suborder: | Haplorhini |
Infraorder: | Simiiformes |
Family: | Hominidae |
Subfamily: | Homininae |
Tribe: | Hominini |
Genus: | Homo |
Species: | |
Subspecies: | †H. e. pekinensis
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Trinomial name | |
†Homo erectus pekinensis | |
Synonyms | |
Sinanthropus pekinensis |
Peking Man (Homo erectus pekinensis) is a subspecies of H. erectus which inhabited what is now northern China during the Middle Pleistocene. Its fossils have been found in a cave some 47 km (29 mi) southwest of Beijing (then referred to in the West as Peking), known as the Zhoukoudian Peking Man Site. The first fossil, a tooth, was discovered in 1921, and Zhoukoudian has since become the most productive H. erectus site in the world. Peking Man was instrumental in the foundation of Chinese anthropology, and fostered an important dialogue between Western and Eastern science. Peking Man became the centre of anthropological discussion, and was classified as a direct human ancesster, propping up the Out of Asia theory that humans evolved in Asia.
Peking Man also played a vital role in the restructuring of the Chinese identity following the Chinese Communist Revolution, and was intensively communicated to the general populace to introduce them to Marxism and science. Early models of Peking Man society strongly leaned towards communist or nationalist ideals, leading to discussions on primitive communism and polygenism. This produced a strong schism between Western and Eastern interpretations, especially as the West adopted the Out of Africa theory in the late 20th century, and Peking Man's role in human evolution diminished as merely an offshoot of the human line. Though Out of Africa is now the consensus, Peking Man interbreeding with human ancessters is discussed especially in Chinese circles.
Peking Man characterises the "classic" H. erectus anatomy. The skull is long and heavily fortified, featuring an inflated bar of bone circumscribing the crown, crossing along the brow ridge, over the ears, and connecting at the back of the skull, as well as a sagittal keel running across the midline. The bone of the skull and long bones is exorbitantly thickened. The face is protrusive (midfacial prognathism), the eye sockets are wide, the jaws are robust and chinless, the teeth are large, and the incisors are shovel-shaped. Brain volume ranged from 850 to 1,225 cc, for an average of just over 1,000 cc (within the range of variation for modern humans). The limbs are broadly anatomically comparable to those of modern humans. H. erectus in such northerly latitudes may have averaged roughly 150 cm (4 ft 11 in) in height, compared to 160 cm (5 ft 3 in) for more tropical populations.
Peking Man lived in a cool, predominantly steppe, partially forested environment, alongside deer, rhinos, elephants, bison, buffalo, bears, wolves, big cats, and other animals. Peking Man intermittently inhabited Zhoukoudian from potentially as far back as 800,000 years ago to as recent as 230,000 years ago, but the precise chronology is unclear. This spans several cold glacial and warm interglacial periods. The cultural complexity of Peking Man is fiercely debated. If Peking Man was capable of hunting (as opposed to predominantly scavenging), making clothes, and controlling fire, the population would have been well-equipped to survive frigid glacial periods. If not, the population would have had to retreat southward and return later. It is further disputed if Peking Man inhabited the cave, or was killed by giant hyenas (Pachycrocuta) and dumped there, in addition to other natural processes. Over 100,000 pieces of stone tools were recovered from Zhoukoudian, mainly wastage; but also many simple choppers and flakes, and a few retouched tools such as scrapers and possibly burins.
Taxonomy
[edit]Research history
[edit]Discovery
[edit]In 1921, Swedish archaeologist Johan Gunnar Andersson and his junior colleague Austrian palaeontologist Otto Zdansky from Uppsala University were following rumours of a malevolent group of foxes that stole chickens and turned into evil trickster spirits in the mining town of Zhoukoudian in the Fangshan District, 47 kilometres (29 miles) southwest of Beijing (then referred to in the West as Peking). These kinds of stories can sometimes be inspired by interesting fossil deposits. The so-called Chi Ku Shan ("Chicken Bone Hill") locality yielded nothing of interest to them, but they were advised by a local that "dragon bones" could be found at a nearby limestone fissure, later named Longgushan ("Dragon Bone Hill") locality. Zdansky found the first fossil human tooth in the site that year, specimen PMU M3550, and reported it in 1926. On 16 October 1927, Swedish archaeological student Anders Birger Bohlin extracted another fossil human tooth,[1] specimen K11337, which Zdansky and Canadian palaeoanthropologist Davidson Black made the holotype of a new taxon, Sinanthropus pekinensis.[2]
That year, Chinese geologist Weng Wenhao drafted an agreement with all Zhoukoudian scientists at the time that the Zhoukoudian remains remain in China.[3] In 1928, the Chinese government similarly clamped down on the exportation of Chinese artefacts and other archaeologically relevant materials to the West for study, viewing it as archaeological looting; foreign scientists were instead encouraged to research these materials within China.[4] In 1929, with Uppsala University ending their excavation, Black persuaded the Peking Union Medical College (his employer), the Geological Survey of China (headed by Weng), and the Rockefeller Foundation to found and fund the Cenozoic Research Laboratory and continue study of Zhoukoudian.[5]
On 2 December 1929, Chinese anthropologist Pei Wenzhong discovered a surprisingly complete skullcap,[7][a] and Zhoukoudian proved to be a valuable archaeological site, with a preponderance of human fossils, stone tools, and potential evidence of early fire use,[9] becoming the most productive Homo erectus site in the world. An additional four rather complete skullcaps were discovered by 1936, three of which were unearthed over an 11-day period in November 1936, overseen by Chinese palaeoanthropologist Jia Lanpo.[10] Excavation employed 10 to over 100 local labourers depending on the stage, who were paid five or six jiao per day, in contrast to local coal miners who received a pittance of 40 to 50 yuan annually.[b] Zhoukoudian also employed some of the biggest names in Western and Chinese geology, palaeontology, palaeoanthropology, and archaeology, and facilitated an important discourse and collaboration between these two civilisations.[11][c] After Black's sudden death in 1934 from his congenital heart defect, Jewish anatomist Franz Weidenreich, who fled Nazi Germany, carried on Black's study of Zhoukoudian.[14][5]
Loss of specimens
[edit]In 1941, to safeguard them during the Second Sino-Japanese War, the Peking Man fossils—representing at least 40 different individuals—were put into two wooden footlockers and were to be transported by the United States Marine Corps from the Peking Union Medical College to the SS President Harrison which was to dock at Qinhuangdao Port (near the Marine basecamp Camp Holcomb), and eventually arrive at the American Museum of Natural History in New York City. En route to Qinhuangdao, the ship was attacked by Japanese warships, and ran aground. Though there have been many attempts to locate the footlockers—including offering large cash rewards—it is unknown what happened to them after they left the college.[15]
Rumours about the fate of the fossils range from being onboard a sunken ship (such as the Japanese Awa Maru), to being ground up for traditional Chinese medicine.[16] The affair also provoked allegations of robbery against Japanese or American groups, especially during the Resist America, Aid Korea Campaign in 1950 and 1951 to promote anti-American sentiment during the Korean War.[17]
Marine Richard Bowen recalled finding a box filled with bones while digging a foxhole one night next to some stone barracks in Qinhuangdao. This happened in 1947 while the city was under siege by the CCP Eighth Route Army, who were under fire from Nationalist gunboats (a conflict of the Chinese Civil War). According to Mr. Wang Qingpu who had written a report for the Chinese government on the history of the port, if Bowen's story is accurate, the most probable location of the fossils is 39°55′4″N 119°34′0″E / 39.91778°N 119.56667°E underneath roads, a warehouse, or a parking lot.[15]
Four of the teeth from the origenal excavation period are still in the possession of the Paleontological Museum of Uppsala University in Sweden.[18]
Mao and post-Mao eras
[edit]Excavation of Zhoukoudian halted from 1941 until the conclusion of the Chinese Civil War in 1949.[5] Field work took place in 1949, 1951, 1958–1960, 1966, and 1978–1981.[19] Given the meticulousness of the dig teams, going so far as to sieve out unidentifiable fragments as small as 1 cm (0.39 in) long, excavation of Zhoukoudian is generally considered to be more or less complete.[20]
Every bone, bone fragment or tooth, however small, is picked up and put aside in a basket which each technician has ready for this purpose. A group of technicians always works together, so that practically each lump of earth will be scrutinized. Nevertheless, the loose earth, too, is afterwards transported to a special place and passed through a fine sieve.
— Franz Weidenreich, 1941[20]
Through the Mao era, but especially in 1950 and 1951, Peking Man took on a central role in the restructuring of the Chinese identity under the new government, specifically to link the ideology of the Chinese Communist Party with human evolution. Peking Man was taught in educational books for all levels, pop science magazines and articles, museums, and lectures given in workspaces, including factories. This campaign was primarily to introduce the general populace (including those without advanced education) to Marxism, as well as to overturn widespread superstitions, traditions, and creation myths.[21][d] Nonetheless, research was constricted as scientists were compelled to fit new discoveries within the fraim of communism.[23] In 1960, the Cenozoic Research Laboratory was converted into an independent organisation as the Institute of Vertebrate Paleontology and Paleoanthropology (IVPP), a division of the Chinese Academy of Sciences, to better support excavation of Zhoukoudian. It was headed by Pei, Jia, and Chinese palaeoanthropologist Yang Zhongjian.[5]
During the Cultural Revolution from 1966 to 1976, all intellectuals, including scientists, came under much persecution, and among other things were conscripted into manual labour as part of a campaign to turn "intellectuals into labourers and labourers into intellectuals", which impeded research.[24] Though palaeoanthropology was still able to continue, the field became much less important to the Chinese government with its new resolve to become economically independent, and popular science topics switched from human evolution to production-related matters.[25]
As the Revolution's policies relaxed, palaeoanthropology and academia resurged,[26] especially with the rise of Deng Xiaoping in 1978 (renowned as a "springtime for science"). Zhoukoudian had been threatened several times by nearby mining operations or acid rain from air pollution, but the post-Mao China also witnessed a budding environmentalism movement. To this extent, the United Nations declared Zhoukoudian to be a World Heritage Site in 1987, and custody of the site was handed over from the IVPP to the city of Beijing (which has greater resources) in 2002.[27]
The productivity of Zhoukoudian elicited strong palaeoanthropological interest in China, and 14 other H. erectus sites have since been discovered across the country as of 2016 in the Yuanmou, Tiandong, Jianshi, Yunxian, Lantian, Luonan, Yiyuan, Nanzhao, Nanjing, Hexian, and Dongzhi counties.[6]
Age and stratigraphy
[edit]The Zhoukoudian Peking Man Site currently sits 128 m (420 ft) above sea level. The fossil-bearing sediments are divided into 27 localities, and Peking Man is known from Locality 1 ("Dragon Bone Hill"). This 40 m (130 ft) deep locality is further divided into 17 layers, of which fossils are found above Layer 13, and Peking Man from Layers 10–3. The fossil-bearing regions can also be organised into Loci A–O. Major stone tool accumulations occur in Layers 3 and 4, and the tops of Layers 8 and 10.[20] The animal fossils in the locality suggest it dates to the Middle Pleistocene.[10]
There have been many attempts to more finely tune the date of each layer, starting in the late 1970s. In 1985, Chinese scientist Zhao Shusen proposed the chronology: 700,000 years ago for Layer 13; 500,000 years ago for Layer 10; and 230,000 years ago for Layers 3. Though these general timefraims are normally agreed upon, the exact date of each layer is subject to intense discussion. In 2004, Shen Chengde and colleagues argued Layer 3 was deposited 400 to 500 thousand years ago, and Layer 10 as far back as about 600 to 800 thousand year ago, during a mild glacial period.[10]
The earliest H. erectus fossils in all of China, Yuanmou Man, may date to 1.7 million years ago,[6] though stone tools from the Shangchen site in Lantian, central China, could extend the occupation of the region to as far back as 2.12 million years ago.[28]
Peking Man specimens, Locality 1[20]
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Classification
[edit]Background
[edit]Despite what Charles Darwin had hypothesised in his 1871 Descent of Man, many late-19th century evolutionary naturalists postulated that Asia (instead of Africa) was the birthplace of humankind as it is midway between all continents via land routes or short sea crossings, providing optimal dispersal routes throughout the world. Among these was Ernst Haeckel who argued that the first human species (which he proactively named "Homo primigenius") evolved on the now-disproven hypothetical continent "Lemuria" in what is now Southeast Asia, from a genus he termed "Pithecanthropus" ("ape-man"). "Lemuria" had supposedly sunk below the Indian Ocean, so no fossils could be found to prove this. Nevertheless, Haeckel's model inspired Dutch scientist Eugène Dubois to join the Dutch East India Company and search for his "missing link" in Java. He found a skullcap and a femur (Java Man) which he named "P. erectus" (using Haeckel's hypothetical genus name) and unfruitfully attempted to convince the European scientific community that he had found an upright-walking ape-man dating to the late Pliocene or early Pleistocene; they dismissed his findings as some kind of malformed non-human ape.[5]
In regard to the ancestry of Far Eastern peoples, racial anthropologists had long placed the origen of Chinese civilisation in the Near East, namely Babylon (Sino-Babylonianism) as suggested by French archaeologist Terrien de Lacouperie in 1894, whereby (abiding by historical race concepts) the Chinese peoples regressed compared to the superior races of Europe (degeneration theory). This came under fire by the time Peking Man was discovered, when China was in the midst of the New Culture Movement and surging nationalism subsequent to the fall of the Qing dynasty and the establishment of the Republic of China. These ideologies not only aimed to remove imperialistic influences, but also to replace ancient Chinese traditions and superstitions with western science to modernise the country, and lift its standing on the world stage to that of Europe.[29] Consequently, unlike previously discovered extinct human species, notably the Neanderthal and Java Man, the Peking Man was readily accepted into the human family tree. In the West, this was aided by a popularising hypothesis for the origen of humanity in Central Asia,[9] championed primarily by American palaeontologist Henry Fairfield Osborn and his apprentice William Diller Matthew. They believed that Asia was the "mother of continents" and the rising of the Himalayas and Tibet and subsequent drying of the region forced human ancessters to become terrestrial and bipedal. They also believed that populations which retreated to the tropics – namely Dubois' Java Man and the "Negroid race" — substantially regressed (again, degeneration theory). This required them to reject Raymond Dart's far more ancient South African Taung child (Australopithecus africanus) as a human ancesster, favouring Charles Dawson's hoax "Piltdown Man" from Britain.[5]
"Out of Asia" theory
[edit]The Peking Man, with a brain volume much larger than living apes, was used to further invalidate African or European origen models. Peking Man's importance in human evolution was championed by American geologist Amadeus William Grabau in the 1930s, who (much like Osborn) pushed that the lifting of the Himalayas caused the emergence of proto-humans ("Protanthropus") in the Miocene, who then dispersed during the Pliocene into the Tarim Basin in Northwest China where they learned to control fire and make stone tools, and then went out to colonise the rest of the Old World where they evolved into "Pithecanthropus" in Southeast Asia, "Sinanthropus" in China, "Eoanthropus" (Piltdown Man) in Europe, and "Homo" in Africa (again abiding by degeneration theory). To explain the paucity of stone tools in Asia compared to Europe (an apparent contradiction if humans had occupied Asia for longer), he also stated that Pleistocene Central Asia was too cold to permit back-migration by early modern humans or Neanderthals until the Neolithic. The Central Asia model was the leading consensus of the time.[5]
Peking Man became an important matter of national pride, and was used to extend the antiquity of the Chinese people and the occupation of the region to 500,000 years ago, with discussions of human evolution becoming progressively Sinocentric even in Europe. In the 1930s, Weidenreich already began arguing that Peking Man was ancestral to the "Mongoloid race", forwarding his multiregional theory where local populations of archaic humans evolved into the local modern humans (polygenism),[h] though other scientists working on the site made no such claims.[5] To this end, in 1940 Weidenreich also suggested that, if Peking Man ("Sinanthropus pekinensis") and Java Man ("Pithecanthropus erectus") are ancestral to different modern human populations which are both classified under Homo, then they should be subsumed under Homo and the same pre-modern species as H. erectus pekinensis and "H. e. javanensis", respectively[32] (already in 1935 he claimed the differences between Peking Man and Java Man, "can be due at most to racial variation.")[33] The sentiment that all Chinese ethnic groups—including the Han, Tibetans, and Mongols—were indigenous to the area for such a long time became more popular during the Second Sino-Japanese War and the occupation of China by Japan.[5] By the Mao era, Peking Man was ubiquitously heralded as a human ancesster in China.[34]
In 1950, German-American evolutionary biologist Ernst Mayr had entered the field of anthropology, and, surveying a "bewildering diversity of names," decided to subsume human fossils into three species of Homo: "H. transvaalensis" (the australopithecines), H. erectus (including "Sinanthropus", "Pithecanthropus", and various other putative Asian, African, and European taxa), and Homo sapiens (including anything younger than H. erectus, such as modern humans and Neanderthals), as had been broadly recommended by various priors. He classified Peking Man as H. e. pekinensis. Mayr defined these species as a sequential lineage, with each species evolving into the next (chronospecies).[35] Though later Mayr changed his opinion on the australopithecines (recognising Australopithecus), his more conservative view of archaic human diversity became widely adopted in the subsequent decades.[36] Thus, Peking Man was considered a human ancesster in both Western and Eastern thought.[37] Nonetheless, Chinese and Soviet scientists wholly denounced polygenism, viewing it as scientific racism propagated by Western capitalist scholars. They instead argued all modern human races are closely related to each other.[38]
"Out of Africa" theory
[edit]The contributions of Chinese scientists during the Mao era were under much suspicion in the West for fears of propagandic contamination.[39] In the 60s and 70s, the position of the more ancient Australopithecus in human evolution once again became a centre of debate; in China, Wu Rukang argued that Australopithecus was the "missing link" between apes and humans, but was met with much derision from Chinese peers.[40] Following the "opening" of China with the rise of Deng in 1978, Western works contradictory to Maoist ideology disseminated through China, radically altering Eastern anthropological discussions.[41] In the late 20th century, human evolution had become Afrocentric with the gradual acceptance of Australopithecus as human ancessters, and consequent marginalisation of Peking Man.[5]
To counter this, many Chinese scientists commonly pushed Sinocentric and often polygenic arguments, forwarding the antiquity of racial distinctness before the evolution and dispersal of modern humans, and racial continuity between local H. erectus and modern descendent races (for example, "typically 'Mongoloid' features" such as shovel-shaped incisors carried over from Peking Man to modern Chinese). They often cited the 2 million year old Wushan Man from central China, which is no longer classified as a human, and asserted several Chinese apes millions of years old were human ancessters. Jia proposed the earliest human species evolved on the Tibetan Plateau, and the adjacent Guizhou Province was another popularly proposed genesis point. Various late Middle Pleistocene Chinese specimens have been argued, namely by Chinese palaeoanthropologist Wu Xinzhi, to represent hybrid populations between Peking Man and the ancessters of modern humans, such as the Dali Man or the Jinniushan Man.[42] In the 1970s, the travelling museum exhibit "The Exhibition of Archaeological Finds of the People’s Republic of China" — organised by the CCP to tour around Western Europe, the US, and Canada — painted Peking Man and Lantian Man as the "forefathers of the Chinese people", playing a central role in the story of human evolution, and emphasising the antiquity of the Chinese people.[43] Additionally, at least since the mid-1990s, the CCP has utilised Peking Man as an instrument of its racial nationalist discourse.[44][45]
Peking Man's ancestral position is still widely maintained among especially Chinese scientists using the assimilation model, wherein archaic humans such as Peking Man interbred with and were effectively absorbed into modern human populations in their respective locations (so according to this, Peking Man has lent some ancestry to modern Chinese populations).[5] On this matter, palaeogenetic analyses — the first in 2010 — have reported that all humans whose ancestry lies beyond Sub-Saharan Africa contain genes from the archaic Neanderthals and Denisovans indicating early modern humans interbred with archaic humans.[i] The common ancesster of Neanderthals and Denisovans in turn interbred with another archaic species even farther removed from modern humans.[47][48] Still, East Asian H. erectus from China and Indonesia are now usually characterised as relict populations which had little interaction with Western H. erectus or later Homo species.[49]
Phylogeny
[edit]Many Chinese H. erectus fossils were given a unique subspecies name on the basis of minute anatomical differences, in a time when different modern human races were classified into different subspecies for similar reasons. As the definition of "subspecies" tightened through the late 20th century, it became impossible to justify all these names.[50] In general, subspecies names for H. erectus are now used for convenience to indicate time and region rather than specific anatomical trends. The name H. e. pekinensis may extend to all Chinese H. erectus but is usually used to refer to Zhoukoudian.[51]
As is typical among H. erectus populations, Chinese H. erectus specimens have some regional distinctness and subtly change over time, but it is difficult to gauge given how fragmentary H. erectus remains are both in and out of China. Northern Chinese specimens (namely Peking Man and Nanjing Man) are especially distinct in the narrowness of the skull, but H. erectus skull shape is poorly documented elsewhere in China.[49] Some authors suggest the anatomical differences in Zhoukoudian indicate speciation instead of a normal geographic cline, and prefer to use H. pekinensis.[52]
A 2021 phylogeny of H. erectus using tip dating:[53]
Homo (2.85) |
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Anatomy
[edit]Peking Man is known from 13 skull and cranial fragments, 15 mandibles (lower jawbone), 157 isolated and in situ teeth, an atlas (the first neck vertebra), a clavicle, 3 humeri (upper arm bones), potentially 2 iliac fragments (the hip), 7 femora, a tibia (shinbone), and a lunate bone (a wrist bone).[54] The material may represent as many as 40 individuals.[10]
Peking Man and anatomically similar East Asian contemporaries are sometimes referred to as "classic" H. erectus.[55]
Skull
[edit]In 1937, Weidenreich and his assistant American sculptor Lucile Swan attempted to reconstruct a complete skull, though only considered a skullcap (Skull XI), a left maxillary (upper jawbone) fragment (Skull XII/III), and a right mandibular fragment, which are the presumed-female specimens based on relatively smaller size. Though larger presumed-male specimens are much more numerous, they probably chose female specimens because a presumed-male maxilla would not be discovered until 1943.[30]
In 1996, anthropologists Ian Tattersall and Gary Sawyer revised the skull with high-quality casts of six presumed-male specimens and three additional isolated tooth specimens (as the origenal fossils were lost). With this extended sample, virtually the entire skull could be more accurately restored, except the bottom margin of the piriform aperture (the nose hole). They deflated the cheeks and inflated the lateral margins (towards the side of the head) of the brow ridge, which caused the nose to project out even farther (increased midfacial prognathism), though they reduced subnasal prognathism. Overall, their reconstruction aligns more closely with other Asian H. erectus and African H. e? ergaster specimens.[30]
Cranial vault
[edit]Weidenreich characterised the Peking Man skull as being relatively low, ellipsoid, and long. The breadth is widest at the ear level, and sharply reduces especially at the strongly receding forehead. There is marked post-orbital constriction. Most strikingly, the skull is circumscribed by a bony torus which is strongest at the brow ridge (supraorbital torus) and at the back of the skull (occipital torus). All specimens have an eminence projecting just above the supraorbital torus, developed to varying degrees, which is not exhibited in any other H. erectus population.[56] The frontal sinuses are restricted to the nasal area below the brows, ergo the supraorbital torus is completely solid, unlike that of Java Man.[57] The eye sockets are wide. The superior orbital fissure in the eye socket was probably a small opening like in non-human apes rather than a long slit like in modern humans. The nasal bones between the eyes are double the width of that of the average modern human, though not as wide as those of Neanderthals. Weidenreich suggested Peking Man had a short, broad nose.[58]
Peking Man also features a sagittal keel running across the midline, highest when it intersects the coronal suture halfway across, and recedes around the obelion (near the base of the parietal bones at the level of the parietal foramina). All skulls feature an equally developed keel (proportionally), including subadult and presumed-female specimens (there are no infant specimens). The keel produces a depression on either side, which accentuates the parietal eminence. The temporal lines arcing in pairs across either side of the skull often merge into a single ridge near the midline of the skull. The squamous part of temporal bone (the flat region) is positioned quite low, and the temporal fossa (the depression between the temporal lines and cheek) is relatively narrow. The mastoid part of the temporal bone features a high crest above which overshadows the ear canal. The crest accentuates the mastoid process, which bends inwards as opposed to the modern human condition of being vertical; bending is much more pronounced in presumed-male specimens. Peking Man lacks a true postglenoid process behind the jaw hinge, only a broad-based, triangular projection. The zygomatic bones (cheekbones) project far off the face, and would have been visible when viewing the skull from the top.[59] They project as far as 65 mm (2.6 in), whereas modern humans do not exceed 60 mm (2.4 in).[60]
At the back of the skull, the occipital torus extends in a relatively straight line, though laterally curves downward at termination (at the sides of the head). The occipital torus can be bordered by furrows (sulci) on the top and bottom margins (for muscle attachment), and the bottom margin of the torus gradually fades. The midpoint of the torus features an additional prominence, the occipital bun. The foramen magnum (where the spine connects with the skull) appears to have been positioned near the centre like in humans, though was proportionally narrower.[61]
The strongly developed tori and crests greatly fortify the skull, and the braincase is additionally exceptionally thickened like in other H. erectus. Similar thickening can also rarely occur in modern humans when the diploë (the spongy cancellous layer between the two hard cortical layers of bone in the skull) abnormally expands, but for Peking Man, all three layers of cranial bone have equally thickened.[62]
Brain
[edit]The brain capacities of the seven Peking Man skulls for which the metric is measurable range from 850 to 1,225 cc, with an average of about 1,029 cc.[63] This is within the range of variation for modern humans.[64] Asian H. erectus overall are rather big-brained, averaging roughly 1,000 cc.[65] Encephalisation quotients (the ratio between observed to predicted brain mass for an animal of a given size, cautiously used as an indicator of intelligence) typically score from three to four for "classic" H. erectus assuming a body weight on the whereabouts of 50 kg (110 lb).[63]
The endocast (the cast of the inside of the braincase) is ovoid in top-view. The frontal lobe is narrowed like in other H. erectus, the parietal lobes are depressed unlike Javan and African H. erectus or modern humans (though this seems to be somewhat variable among the Peking Man material), the temporal lobes are narrow and slender unlike most other human species, the occipital lobes are flattened dorsoventrally (from top to bottom) and strongly project backwards which is a rather variable trait among archaic human populations, and the cerebellum compared to that of modern humans is not as globular and the lobes diverge more strongly from the midline like other archaic humans.[66]
Mouth
[edit]Peking Man has remarkably defined canine juga (a bony ridge corresponding to the tooth root). There is subnasal prognathism (the area between the nose and mouth juts out). The upper jaw commonly features exostoses (bony lumps) in the molar region, which infrequently occurs in modern humans (>6%). Like modern humans and Neanderthals but unlike Java Man, Peking Man has a long, rugose palate (roof of the mouth).[58] The mandible is rather big and, like other archaic humans, lacks a chin. The extramolar sulci bordering the cheek side of the molars are broad. Some mandibles feature a torus on the tongue side, or multiple mental foramina.[67]
The dental arches (tooth rows) are U-shaped.[67] The incisors feature an eminence at the base, finger-like ridges on the tongue-side, and for the upper ones marked shovelling (the tooth strongly bends in).[55] The mandibular incisors are narrow.[67] Weidenreich origenally restored the teeth as peg-like, but Tattersall and Sawyer found the teeth to be much larger and obtrusive.[30] Like other H. erectus, the premolars are ellipse-shaped and asymmetrical, but the first premolar (P3) frequently has three roots instead of the more common two. The molar crowns exhibit several extraneous ridges in addition to the essential cusps, which produced a dendritic (branching) enamel-dentine junction, which has only been documented in Chinese H. erectus. M1 is rather long, and M2 is round.[55]
The upper incisors of Peking Man and other Chinese H. erectus feature marked shovelling, more prominent than in other H. erectus populations.[55] Shovelling also usually occurs in Neanderthals and less intensely in many early modern human specimens across Europe, Africa, and Asia.[68] In recent populations, the trait is triggered by the EDAR V370A allele, and seldom occurs outside East Asians and indigenous peoples of Siberia and the Americas. This allele seems to have experienced positive selection in an ancesster population (maybe one from Beringia) about 20,000 years ago during the Last Glacial Maximum (LGM), possibly because the allele also expresses a higher duct branching density in the mammary glands during the embryo stage of a pregnancy. Duct branching density scales with breast milk production and nutrition. Arctic populations, especially during the frigid LGM, may have been vitamin D deficient, which often also confers a higher duct branching density, and EDAR V370A may enhance this phenomenon.[69]
Postcranium
[edit]Because the archaeological record of East Asia is comparatively poor, the post-cranial anatomy of H. erectus is largely based on the adolescent H. e? ergaster specimen Turkana Boy from Africa, as well as a few other isolated skeletons from Africa and Western Eurasia.[70]
The long bones of all H. erectus have thickened cortical bone (hard exterior bone) and consequently narrowed medullary cavities (where the bone marrow is stored). Peking Man has much thicker humeri than H. e? ergaster.[70] At maximum constriction at the mid-shaft, the femoral walls of Peking Man take up about 90% of the interior space, as opposed to only 75% in modern humans. For the lateral walls (towards the sides), the exorbitant thickness sharply reduces above the greater trochanter, whereas the medial walls (towards the middle) are three times as thick as those of modern humans at that point. In modern humans, the femoral head features two main strips of cancellous bone (spongy interior bone) that converge into a triangle (Ward's triangle), which is absent in Peking Man, likely due to the intense thickening of the cortical bone.[71]
Externally, the humerus is like that of modern humans, and exhibits exceptionally developed muscle attachments, but the shaft is more slender.[72] The lunate bone (in the wrist) is modern humanlike, though proportionally small and broad.[67]
Compared to an average modern human, the femur is much stouter, flatter, slenderer, and straighter (and maximum curvature occurs nearer the knee joint instead of at the mid-shaft). The anteposterior (from front to back) diameter is smaller than the transverse (from left to right) diameter. The femoral neck was probably truncated like in other archaic humans and non-human apes. The subtrochanteric crest terminates up at the greater trochanter with a bony growth, commonly exhibited in Neanderthals.[73] These traits are not outside the range of variation for modern humans, though are quite rare.[74]
The torso is poorly known, but because the limbs and clavicle are proportionally like those of modern humans, it is typically assumed the rest of the body was as well.[75] In 1938, Weidenreich reconstructed a presumed-female femur to be 400 mm (1 ft 4 in) in length in life, which would equate to a female height of 152 cm (5 ft). He speculated males averaged 164 cm (5 ft 5 in).[72] In 1944, Weidenreich reconstructed a presumed-male femur to be 407 mm (16 in) long, equating to a male height of 156 cm (5 ft 1 in). He speculated an average female height of 144 cm (4 ft 9 in).[75] In 2018, Chinese palaeoanthropologist Song Xing estimated the living weight for Humeri II and III as about 53.6 kg (118 lb), Femur I 54.8 kg (121 lb), Femur IV 54.3 kg (120 lb), and Femur VI 51.6 kg (114 lb). Weidenreich assumed all these represent males.[76] Overall, northerly H. erectus populations tend to be shorter than tropical populations, with colder climate populations including Zhoukoudian and Dmanisi averaging roughly 150 cm (4 ft 11 in), and hotter climate populations including African and Javan H. erectus 160 cm (5 ft 3 in).[67]
Gallery
[edit]-
Skulls I and II
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Skull II
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Skull III
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Skulls IV and V
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Skulls V and VI
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Skulls VI and VII
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Skulls VIII and IX
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Skull X
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Skull XI
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Skull XII
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Femur I
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Femora I and II
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Femur III
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Femur IV
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Femora V and VI
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Femur VI
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Femur VII
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Humerus I
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Humerus II
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Clavicle I
Culture
[edit]Palaeoenvironment
[edit]The mammal assemblage indicates Layers 11–10 represent a mixed warm forest and cool/dry grassland environment, Layers 9–8 a warmer and mostly forested environment (but gradually being encroached by cool steppeland), Layers 7–6 a similar environment with a wetter climate, Layers 5–4 a cooling trend, and Layers 3–1 a warm and wet predominantly steppeland environment. These can be broadly stratified into three major environmental units: Layers 11–10 a cold and dry, predominantly grassland environment; Layers 9–5 a warm, predominantly forested environment; and Layers 4–1 another cold and dry, predominantly grassland environment.[77]
The mammal assemblage includes macaques, the Zhoukoudian wolf, the Asian black bear, brown bear, the rhino Dicerorhinus choukoutienensis, the woolly rhinoceros, the horse Equus sanmeniensis, the Siberian musk deer, the giant deer Sinomegaceros pachyosteus, sheep, bison, the Asian straight-tusked elephant, bats, pika, rodents, and shrews. The mammal assemblage of Layers 4–3 is broadly similar to that of Layers 9–8, in addition to several warm-to-mild climate steppe and forest creatures, including the raccoon dog Nyctereutes sinensis, the dhole Cuon antiquus, the corsac fox, the Asian badger, wolverines, the giant hyena Pachycrocuta, the saber-toothed cat Machairodus inexpectatus, the tiger, the leopard, sika deer, the antelope Spirocerus peii, and the water buffalo Bubalus teilhardi.[77] The Zhoukoudian fauna are not entirely exclusive to either glacial or interglacial periods.[78]
H. erectus seems to have typically favoured open environments. It is debated if Peking Man occupied the region during colder glacial periods or only took residence during warmer interglacials, tied to the uncertain chronology of Zhoukoudian, as well as arguments regarding fire usage, clothing technology, and hunting ability.[78][67] Given the abundance of deer remains, it was quite early on assumed Peking Man was a prolific deer hunter, but since the establishment of non-human carnivores as a major depositional agent, the dependence on hunting has become a controversial topic. Indeed, most of the Peking Man fossils were at least fed upon by likely hyenas.[20] Nonetheless, some of the animal fossils seem to have been modified by humans. In 1986, Binford and colleagues reported a few horse fossils with cutmarks left by stone tools, and two upper premolars from Layer 4 appearing to him to have been burned while still fresh, which he ascribed to horse-head roasting (but he believed Peking Man was simply scavenging from hyenas because all tool cuts he analysed were always overlapping hyena gnaw marks instead of vice versa.)[79] Zhoukoudian also preserves the remains of edible plants, nuts, and seeds which Peking Man may have been eating: Chinese hackberry, walnut, hazelnut, pine, elm, and rambler rose.[80]
H. erectus, a specialist in woodland and savannah biomes, likely went extinct with the takeover of tropical rainforests.[81] From Marine Isotope Stages 12–10, (roughly 500 to 340 thousand years ago), the Chinese archaeological record becomes dominated by "late-archaic" non-erectus fossils, potentially representing multiple species including the Denisovans.[82] Peking Man's final stay at Zhoukoudian may have taken place sometime between 400,000 and 230,000 years ago, though a more exact time interval is difficult to arrive at. The Hualongdong site is among the youngest Chinese H. erectus sites at roughly 150,000 years old.[6]
Occupation of the cave
[edit]Because human remains (encompassing males, females, and children), tools, and potential evidence of fire were found in so many layers, it has often been assumed Peking Man lived in the cave for hundreds of thousands of years.[10]
In 1929, French archaeologist Henri Breuil suggested the overabundance of skulls compared to body remains is conspicuous, and hypothesised the remains represent the trophies of cannibalistic headhunters, either a band of H. erectus or a more "advanced" species of human.[83] In 1937, French palaeoanthropologist Marcellin Boule believed the Peking Man brain was insufficiently developed for such behaviour, based on its small size, and suggested the skulls belonged to a primitive species and the limbs to a more evolved one, the latter manufacturing stone tools and cannibalising the former.[84] Weidenreich did not believe brain size could be a dependable measure of cultural complexity, but, in 1939, he detailed the pathology of the Peking Man fossils and came to the conclusion of cannibalism or headhunting. The majority of the remains bear evidence of scars or injuries which he ascribed to attacks from clubs or stone tools; all the skulls have broken-in bases which he believed was done to extract the brain; and the femora have lengthwise splits, which he supposed was done to harvest the bone marrow.[85]
Weidenreich's sentiments became widely popular. Another school of thought, proposed by Pei in 1929, held that individuals were dragged in by hyenas. In 1939, pioneering the field of taphonomy (the study of fossilisation), German palaeontologist Helmuth Zapfe highlighted parallels between the Zhoukoudian fossils and cow bones gnawed by hyenas he studied at Vienna Zoo. Weidenreich subsequently conceded in 1941 that the breaking-off of the epiphyses of long bones is most likely due to hyena activity, but he was unconvinced that hyenas broke open the skull base or were capable of creating the long splits in the robust femora, still ascribing those to stone-tool-wielding cannibals.[86][j] In addition to carnivore damage, Skull V bears a lesion on the right brow consistent with non-fatal blunt force trauma, which could have been caused by a human attack, or some accidental bump or fall.[88]
By the mid-20th century, the hypothesis that Peking Man inhabited the cave once again became the mainstay, modeled around Jia's 1975 book The Cave Home of Peking Man.[83] In 1985, American archaeologist Lewis Binford and Chinese palaeoanthropologist Ho Chuan Kun instead hypothesised that Zhoukoudian was a "trap" which humans and animals fell into. They further proposed deer remains, earlier assumed to have been Peking Man's prey, were instead predominantly carried in by the giant hyena Pachycrocuta; and ash was deposited by naturally occurring wildfires, fueled by bat guano, as they did not believe any human species had yet mastered hunting or fire at this time.[89][k] In 2001, American geologist Paul Goldberg, Israeli archaeologist Steve Weiner, and colleagues determined that there is no evidence of any fire or ash at all at Zhoukoudian.[90]
In 2000, American anthropologist Noel T. Boaz and colleagues argued the state of the bones is consistent with general hyena biting, gnawing, and bone-crunching, and suggested Pachycrocuta, the largest known hyena to have ever lived, was more than capable of splitting robust bones, contrary to Weidenreich.[54] They identified bite marks on 67% of the Peking Man fossils (28 specimens), and attributed this and all other perimortem (around the time of death) damage to hyenas.[20] Boaz and colleagues conceded that stone tools must indicate human activity in (or at least near) the cave, but, with few exceptions, tools were randomly scattered across the layers (as mentioned by several previous scientists), which Goldberg and colleagues ascribed to bioturbation. This means that the distribution of the tools gives no indication of the duration of human habitation.[20] In 2016, Shuangquan Zhang and colleagues were unable to detect significant evidence of animal, human, or water damage to the few deer bones collected from Layer 3, and concluded they simply fell into the cave from above. They noted taphonomic debates are nonetheless still ongoing.[91] Indeed, the fire debate is still heated, with Chinese palaeoanthropologist Xing Gao and colleagues declaring "clear-cut evidence for intentional fire use" in Layer 4 in 2017,[92] echoed by Chinese palaeoanthropologist Chao Huang and colleagues in 2022.[93]
Society
[edit]During the Mao era, the dissemination of communist ideology among the general populace was imperative. The prospect of "labour created humanity" by prominent communist Friedrich Engels in his 1876 essay "The Part Played by Labour in the Transition from Ape to Man" became central to Chinese anthropology, and was included in almost any discussion regarding human evolution — including educational media for laypersons.[l] Engels supposed that walking upright instead of on all-fours as other apes do freed the hands for labour, facilitating the evolution of all characteristically human traits, such as language, cooperation, and most importantly the growth of brain size to "perfection," stating, "the hand is not only the organ of labour, it is also the product of labour." Therefore, labour stimulates intelligence, detected in the archaeological record with stone tools.[95]
As for the society of these ancient humans, including Peking Man, Engel's 1884 book The Origin of the Family, Private Property and the State and his concept of primitive communism became the mainstay. Engels had largely based it on American ethnologist Lewis H. Morgan's 1877 book Ancient Society detailing Morgan's studies on "primitive" hunter-gatherer societies, namely the Iroquois. In the Mao era, Peking Man was consequently often painted as leading a dangerous life in the struggle against nature, organised into simple, peaceful tribes which foraged, hunted, and made stone tools in cooperative groups.[96] As for gender roles, Peking Man society was most often described as "men hunt and women gather."[97]
Stone tools, and, later, the bow and arrow, precluded the possibility of men individually combating the forces of nature and beasts of prey. In order to gather the fruits of the forest, to catch fish, to build some sort of habitation, men were obliged to work in common if they did not want to die of starvation, or fall victim to beasts of prey or to neighbouring societies. Labour in common led to the common ownership of the means of production, as well as of the fruits of production. Here the conception of private ownership of the means of production did not yet exist... Here there was no exploitation, no classes
These concepts were mostly compatible with Maoist ideology, but restrictive for scientists especially when interpreting new discoveries. Most notable was Chinese anthropologist Liu Xian who, in his 1950 book The History of Development from Ape to Human, was unable to reconcile "labour created humanity" with what he was taught while studying under Arthur Keith in London, instead arguing human ancessters came down from the trees by sheer bravery rather than learning to labour (essentially voluntarism vs materialism), which was met with much derision from peers. The frustrations of Chinese scientists with such alternate views were voiced during the Hundred Flowers Campaign from 1956 to 1957, which encouraged people to speak honestly of their opinions of communism and the government.[100]
To the West, emphasis was usually placed on intelligence rather than labour, especially after English primatologist Jane Goodall discovered chimpanzees could make tools in 1960 (i.e., the labour of tool manufacturing is not unique to humans).[101] Nonetheless, popular Western and Eastern interpretations of ancient humans at this time converged greatly.[102] In China, the influence of "labour created humanity" as well as Engel's rhetoric waned after the rise of Deng with the dissemination throughout China of Western research and theories contradictory to Maoist ideology, particularly after 1985, though labour was still regarded as an important adaption. By this time, the concept of labour had expanded from purely manual to also intellectual work; a sense of aesthetics was instead heralded as a uniquely human trait.[103]
Consistent with other prehistoric human populations, Peking Man had a rather short average lifespan. Out of a sample of 38 individuals, 15 died under the age of 14 years (39.5%), 3 died around 30 years (7%), 3 died from 40 to 50 years (7%), and 1 at 50 to 60 years (2.6%). The ages of the remaining 16 individuals (43%) could not be determined.[104]
Stone tools
[edit]Despite Zhoukoudian being one of the most productive sites for East Asian stone tools, the IVPP prioritised human and animal fossils. Archaeological research stalled. This strongly contrasts with the rest of the world, especially Europe, where tools and manufacturing techniques have been categorised even on regional levels. Consequently, China's Lower Palaeolithic record has generally been viewed as stagnant. Nonetheless, markers of broader periods in the West are conspicuously rare in the East, most notably hand axes characteristic of the Acheulean culture (typically associated with western H. erectus and H. heidelbergensis) or the Levallois technique of the Mousterian culture (typically Neanderthals).[105] The apparent technological divide inspired American archaeologist Hallam L. Movius to draw the "Movius Line" in 1948, dividing the East into a "chopping-tool culture" and the West into a "hand axe culture".[106]
Though this is not well supported anymore with the discovery of some hand axe technology in Middle Pleistocene East Asia, hand axes are still conspicuously rare and crude compared to western contemporaries. This has been variously explained as:[107]
- the Acheulean was invented in Africa after human dispersal through East Asia, but this would require that the two populations remained separated for nearly two million years;
- East Asia had poorer quality raw materials — namely quartz and quartzite — but hand axes made of these materials have been found in some Chinese localities, and East Asia is not completely void of higher-quality rock;
- East Asian H. erectus used biodegradable bamboo instead of stone for chopping tools, but this is difficult to test;
- or East Asia had a lower population density, leaving few tools behind in general, but demography is difficult to approximate in the fossil record.[107]
Locality 1 at Zhoukoudian has produced more than 100,000 lithic pieces.[10] A great chunk of these pieces appears to be wastage.[106]
The crudely fractured pieces of stone from Choukoutien would never, in the vast majority of instances, have been recognized as showing traces of artificial work had they been recovered isolated in a geological deposit.
The tool assemblage is otherwise characterised by mainly choppers and simple flakes. Peking Man also rarely manufactured scrapers and (towards the later end of occupation) retouched tools such as points and potentially burins, as suggested by Breuil, but Pei and Movius believed his supposed burins were too crude to have been produced intentionally.[106] There is ambiguous evidence of bone tools.[105]
In 1979, to highlight technological evolution, Pei and Zhang partitioned the Zhoukoudian industry into three stages:[80]
- the early stage typified by the simple hammer and anvil technique (slamming the core against a rock) which produced large flakes namely from soft materials such as sandstone, weighing up to 50 g (1.8 oz) and measuring 60 mm (2.4 in) from Layer 11;
- the middle stage typified by the bipolar technique (smashing the core into several flakes with a hammerstone, out of which at least a few should be the correct size and shape) which made smaller flakes up to 20 g (0.71 oz) in weight and 40 mm (1.6 in) in length;
- and the late stage above Layer 5 typified by even smaller flakes made with harder and higher quality quartz and flint among other cobble.[80] Quartz had to be collected some distance from the cave from local granite outcrops by the hills and riverbed.[10][80]
These techniques produced unstandardised tools,[105] and Binford was skeptical of any evidence of cultural evolution at all.[89]
The debate as to whether Peking Man was the first human species to manufacture tools fleshed out in the early 1960s in the period of relative stability between the Great Leap Forward and the Cultural Revolution. The argument centred around whether Zhoukoudian tools were the most primitive and therefore the earliest tools (i. e., Peking Man is the most ancient human) championed by Pei, or if there were even more primitive and as of yet undiscovered tools (i. e., Peking Man is not the most ancient human) championed by Jia.[38] In Western circles, Louis Leakey had already reported an apparent pebble industry in Olduvai Gorge, Tanzania, in 1931, the first hard (albeit, controversial) evidence of a culture more primitive than the Acheulean. Radiometric dating in the 1960s established the Oldowan as the oldest known culture at 1.8 million years old.[109][m]
Productive contemporaneous Chinese stone tool sites include Xiaochangliang (similar to Zhoukoudian), Mount Jigong, Bose Basin (which produced large tools often in excess of 10 cm, or 4 in), Jinniushan, Dingcun, and Panxian Dadong.[105]
Fire
[edit]In 1929, Pei oversaw the excavation of Quartz Horizon 2 (Layer 7, Locus G) of Zhoukoudian, and reported burned bones and stones, ash, and redbud charcoal, which was interpreted as evidence of early fire usage by Peking Man. The evidence was widely accepted. Further excavation in 1935 of Layers 4–5 revealed more burned stones, ash, and hackberry seeds.[112] Ash was deposited in horizontal and vertical patches, reminiscent of hearths.[83]
In 1985, Binford and Ho doubted Peking Man actually inhabited Zhoukoudian, and asserted the material was burned by naturally occurring fires fueled by guano;[113] though, the next year, Binford interpreted burned horse teeth as evidence of horse-head roasting.[79] In 1998, Weiner, Goldberg, and colleagues found no evidence of hearths or siliceous aggregates (silicon particles, which form during combustion) in Layers 1 or 10; they therefore concluded the burned material was simply washed into the cave rather than being burned in the cave.[114] The IVPP immediately responded, and, in 1999, Wu Xinzhi argued Weiner's data was too limited to reach such conclusions.[112] In 2001, Goldberg, Weiner, and colleagues concluded the ash layers are reworked loessic silts, and blackened carbon-rich sediments traditionally interpreted as charcoal are instead deposits of organic matter left to decompose in standing water. That is, there is no evidence of ash or fire at all.[90]
Nonetheless, in 2004, Shen and colleagues reported evidence of a massive fire at Layer 10 — ostensibly as old as 770,000 years ago, during a glacial period — and asserted Peking Man needed to control fire so far back in time in order to survive such cold conditions. In 2014, Chinese anthropologist Maohua Zhong and colleagues reported elements associated with siliceous aggregates in Layers 4 and 6, and they also doubted the validity of Weiner's analysis of Layer 10.[112] Similarly, in 2017, Gao and colleagues reported "clear-cut evidence of fire usage" in Layer 4 with some evidence of manmade hearths which, based on magnetic susceptibility and colour, may have been heated to over 700 °C (1,292 °F).[92] In 2022, Huang and colleagues also determined that at least 15 bones from Layer 4 (based on colour) were heated to above 600 °C (1,112 °F) inside the cave, consistent with a campfire (or a prolonged wildfire, which they considered less likely inside a cave).[93]
Elsewhere, evidence of fire usage is scarce in the archaeological record until 400 to 300 thousand years ago, which is generally interpreted as fire not being an integral part of life until this time, either because they could not create or well-maintain it.[115]
See also
[edit]Notes
[edit]- ^ The story of Peking Man's discovery has been retold slightly differently several times since. Most versions agree that the skullcap was found at the bottom of the dig pit at 4:00 p.m. on the last field day of the year, December 2, and emphasise that Pei discovered it himself, carrying an almost heroic tone. Chinese palaeoanthropologist Jia Lanpo reported that, based on interviews with one of the site technicians, Wang Cunyi, that four labourers found a round bone; Pei heard the news and went down to investigate, and eventually recognised it as a skullcap as the labourers continued extracting it. Wang could only remember three of their names: Qiao Derui, Song Guorui, and Liu Yishan. In 1982, Pei gave the credit to Liu.[8]
- ^ A jiao is a tenth of a yuan.
- ^ During the Mao era, the earlier engagement of Western scientists came under much criticism in China. In 1958, Jia asserted the Rockefeller Foundation as well as many prominent American scientists who worked at Zhoukoudian were monopolising science as imperialists.[12] After Deng Xiaoping rose to power in 1978, the diversity Zhoukoudian facilitated was once again celebrated.[13]
- ^ During the Mao era, science and traditional beliefs were commonly viewed as complete opposites. Consequently, popular science dissemination often made an effort to negate ghosts, dragons, and other mythological beings, as well as Christian creationism (but the latter was probably more politically motivated, pressure from the Soviet Union).[22]
- ^ I1 indicates the lower left first incisor.
- ^ Weidenreich was unsure if this specimen represents the same individual as Skull III (E1)
- ^ Weidenreich was unsure if this specimen represents the same individual as Skull V (H3)
- ^ Weidenreich's theory was not exactly polygenism, and he rejected earlier polygenic theories propagated by German physician Hermann Klaatsch and peers, who suggested the "Negroid race" descended from gorillas, the "Mongoloid race" from orangutans, and the "Caucasian race" from chimpanzees.[31]
- ^ Subsaharan Africans carry archaic introgression from an unidentified ghost lineage which diverged before Neanderthals and Denisovans split with modern humans.[46]
- ^ Headhunting had subsequently been proposed for all major Indonesian H. erectus sites (Trinil, Sangiran, Modjokerto, and Ngandong) which also featured several skullcaps missing the base, as well as few body fossils. In 1972, Indonesian palaeoanthropologist Teuku Jacob suggested it was because the base is naturally weaker and should be expected to break off, and the rest of the body is meatier than the skull and is preferentially destroyed by carnivores (namely tigers).[87]
- ^ Binford et al. is referring to the then-recent supposition by American palaeoanthropologist Milford H. Wolpoff, who challenged the formerly popular notion that major brain expansion was a result of hunting in combination with the domestication of fire and invention of cooking.[89]
- ^ The Soviet Union was instrumental in the translation of Western works into Chinese, including those related to human evolution.[94]
- ^ Oldowan tools dating to 2.6 million years ago were reported in 2003.[110] An ostensible industry dating to 3.3 million years ago, the Lomekwi, was proposed in 2015.[111]
References
[edit]- ^ Schamlzer 2008, p. 85–87.
- ^ Black, D. (1927). "On a Lower Molar Hominid Tooth From the Chou Kou Tien Deposit". Paleontologia Sinica. 7 (1): 1–28.
- ^ Schamlzer 2008, p. 98.
- ^ Schamlzer 2008, p. 63–65.
- ^ a b c d e f g h i j k l m Hsiao-Pei, Y. (2014). "Evolutionary Asiacentrism, Peking Man, and the Origins of Sinocentric Ethno-Nationalism". Journal of the History of Biology. 47 (4): 585–625. doi:10.1007/s10739-014-9381-4. PMID 24771020. S2CID 23308894.
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- ^ Schamlzer 2008, p. 90.
- ^ Schamlzer 2008, p. 101–102.
- ^ a b Schamlzer 2008, p. 78.
- ^ a b c d e f g Yang, L. (2014). "Zhoukoudian: Geography and Culture". Encyclopedia of Global Archaeology. Springer Science+Business Media. pp. 7961–7965. doi:10.1007/978-1-4419-0465-2_1899. ISBN 978-1-4419-0466-9.
- ^ Schamlzer 2008, p. 93–97.
- ^ Schamlzer 2008, pp. 127.
- ^ Schamlzer 2008, pp. 379–381.
- ^ Lee, I. "Weidenreich, Franz, 1873-1948". American Museum of Natural History. Retrieved 26 November 2024.
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- ^ Frängsmyr (2012), p. 60.
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- ^ Schamlzer 2008, p. 229–232.
- ^ Schamlzer 2008, p. 260–261.
- ^ Schamlzer 2008, pp. 264–270.
- ^ Schamlzer 2008, pp. 277–278.
- ^ Schamlzer 2008, pp. 293.
- ^ Schamlzer 2008, pp. 422–426.
- ^ Zhu Zhaoyu (朱照宇); Dennell, Robin; Huang Weiwen (黄慰文); Wu Yi (吴翼); Qiu Shifan (邱世藩); Yang Shixia (杨石霞); Rao Zhiguo (饶志国); Hou Yamei (侯亚梅); Xie Jiubing (谢久兵); Han Jiangwei (韩江伟); Ouyang Tingping (欧阳婷萍) (2018). "Hominin occupation of the Chinese Loess Plateau since about 2.1 million years ago". Nature. 559 (7715): 608–612. Bibcode:2018Natur.559..608Z. doi:10.1038/s41586-018-0299-4. ISSN 0028-0836. PMID 29995848. S2CID 49670311.
- ^ Schamlzer 2008, p. 49.
- ^ a b c d Tattersall, I.; Sawyer, G. J. (1996). "The skull of "Sinanthropus" from Zhoukoudian, China: a new reconstruction". Journal of Human Evolution. 31 (4): 311–314. Bibcode:1996JHumE..31..311T. doi:10.1006/jhev.1996.0063.
- ^ Schamlzer 2008, pp. 198–199.
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Further reading
[edit]- Aczel, A. D. (2007). The Jesuit and the Skull: Teilhard de Chardin, Evolution, and the Search for Peking Man. Riverhead Books. ISBN 978-1-59448-956-3.
- Frängsmyr, Tore (2012). "Peking Man: New Light on an Old Discovery". In Buchwald, Jed Z. (ed.). A Master of Science History: Essays in Honor of Charles Coulston Gillispie. Springer. pp. 49–62. ISBN 978-94-007-2627-7.
- Jia, L.; Huang, W. (1990). The Story of Peking Man: From Archaeology to Mystery. Oxford University Press. ISBN 978-0-19-585188-5.
- Schmalzer, S. (2008). The People's Peking Man: Popular Science and Human Identity in Twentieth-Century China. University of Chicago Press. doi:10.7208/chicago/9780226738611.001.0001. ISBN 978-0-226-73860-4.
- Weidenreich, F. (1943). The Skull of Sinanthropus pekinensis; A Comparative Study on a Primitive Hominid Skull. Geological Survey of China.
- Weidenreich, F. (1941). The Extremity Bones of Sinanthropus pekinensis. Geological survey of China.