РефератыИностранный языкEaEarly Erectus Tools Found In China Essay

Early Erectus Tools Found In China Essay

, Research Paper


In the January/February issue of Archaeology magazine, the article “Early Homo erectus Tools in


China” holds additional, yet questionable information about the foundations of the genus Homo. After


recent findings of stone tools and animal bones at Renzidong (Renzi Cave) in Anhui Province, eastern


China, Chinese scientists have concluded that Homo erectus may have been established there 400,000 years


earlier than formerly believed, almost 2.25 million years ago. Besides this site being one of the oldest for


findings of early hominins, it has fueled, “[…] a debate on the origins of our genus Homo, with some


Chinese scientists proposing an evolution of H. erectus in China parallel to that […] in Africa”(14). A


limestone cave at Longgupo (”Dragon Hill”) in Sichuan Province is also in the spotlight for the “[…]


East-West debate […]“, over Homo origins (14). This cave has produced a 2 million year old mandible


fragments with features supporting both ideas of origins from the Chinese and West, not yielding to a


single, simple explanation. As to where these apes made their signature development onto the open, flat


land is debated indefinitely.


Approximately 1.7 million years ago, Homo erectus arose in Africa and shortly thereafter spread to


other continents, as most scientists believe. As they expanded their range and increased in population, H.


erectus may have exterminated H. habilis. Then transition from H. erectus to H. sapiens occurred about


400,000 years ago, and the dispute is over the place of origin of modern humans. “There is considerable


controversy among scientists as to whether the transition to H. sapiens took place only in Africa, or the


evolution of modern humans occurred simultaneously on three continents” (Purves 515). With little


information that we have now, a strong, clear hypothesis with support is lacking. But these newly


recovered fosiils and tools in Renzidong may change things around.


The “out of Africa” hypothesis suggests a single origin in Africa followed by several dispersal’s.


The “multiregional” hypothesis, in contrast, proposes parallel origins of Homo in different regions of


Europe, Africa, and Asia. But the Chinese believe in the “Asian Hypothesis”, or Asian origins of the genus.


Both sides agree that plate tectonic movements caused climatic changes from East Africa to East Asia. The


weather tended to be more “[…] seasonal and arid”, instigating arboreal apes to move onto the savannah


and evolve into upright hominins (Ciochon 15).


A large fissure in Anhui Province has yielded 3,000 bones of animals of 60 species. Some animals


included a tapir and a mastodon. Another one of the species included is the monkey Procynocephalus,


determining that that area was open to the environment about 2.5 million years ago. Also found were 50


stones and bones cut to be used as choppers, similar to those found in Africa. Most East Asian tools


found tend to be flakes with one side removed, called choppers. The only problem is that sometimes these


tools can be confused with rocks formed asymmetrically from wear and tear, including rain, snow ,and years


of movement and erosion. These tools were used for digging, cutting wood, capturing animals, cleaning


and cutting meat, and scraping hides. Early hominins could have gone into the fissure and butchered the


animals for food after they had fallen into the hole. Evidence for this is provided by the findings of the tapir


seemingly to be laid out for butchering and the mastodon skeletons piled on one of the side walls.


Procynocephalus skeletons as well as similar monkeys and H. erectus fossils have been found


together both in East Africa and Asia. In Longgupo, a mandible fragment found had two worn out molars


from the Procynocephalus monkey. Western scientists believe these “[...] teeth share feature

s with earliest


Homo in East Africa-leading us to suggest a direct link, a “dispersal” of African hominins to East Asia about


2 million years ago”(14-15). But the Chinese disagree, seeing similar features in Asian apes, and proposing


an Asian Homo origin.


Fossil remains from this genus have been found in Africa, Indonesia, China, the Middle East, and


Europe. The Pliocene record of hominins in Africa preceding H. erectus is extensive, “[...] whereas the


Asian record holds little information to date” (15). But more recent findings in new areas and techniques


have sprouted with hidden information yet to be known.


A newly introduced potassium/argon dating technique was used to redate the Sangiran erectus


fossils, found in Java. These fossils were found to be from 1.6 to 1.9 million years ago, twice as old as


previously thought and at least as old as the oldest African erectus fossil. This opens up the possibility


that H. erectus may have evolved somewhere other than Africa, evidently East Asia. For Westerners,


plausible explanations for this include that they first appeared in Africa earlier than any of the fossils that


have been found, or that their expansion began shortly after they first evolved. Or maybe erectus evolved


in between Asia and Africa and migrated. “{…} [T]hen why haven’t any earlier fossil hominids been found


outside Africa?”, asks Matt Cartmill author of the article “The Third Man”(185). If the dates are accurate,


then these explanations are legitimate. But the Chinese scientists see it in a different light.


According to many scientists, (both Chinese and Western amongst others) Homo erectus left the


savannah’s to which they were so well adapted because of reproductive success. Their big brains allowed


them to exploit their environment and make better and more varied tools. They could learn more and reason


out problems that their habitat posed. They also had a more complex social organization. With the


population increase, there may have been pressure put on resources and social harmony. Different groups


migrated out to find less competition over food, water, and space.


Overall this article has an East vs. West theme, Chinese vs. the Westerners. Who’s to say who’s


right or wrong? Here are fossils of great geological age and importance that have been used to back up two


different theories on the beginnings of the genus Homo. Both are plausible, but one is more widely


accepted and a more evidence supported than the other. The authors could be racist and want the Chinese


to look ridiculous in front of the world, leaning for a Western explanation to be the correct one. The article


portrays a theme of right versus wrong, white versus Asian. Or is it just circumstantial that all the Chinese


anthropologists agree with the “Asian Hypothesis” and unlike the Westerners who are divided among the


“multiregional” and “out of Africa” hypotheses? This article has made gross generalizations that are not


entirely supported with evidence. Ciochon and Larick demean the Chinese because they have found


evidence that could support what some of them believe to be their roots, or beginnings. I applaud the


Chinese scientists for challenging theories, the way truth is found in science. They have fossils from a very


early date that are not corresponding to past records and the lineage of movement of H. erectus. East Asia


holds hidden information in its untouched land about our ancestral past and the West should not shun


ideas that could one day be supported indefinitely by these new fossil findings.


Park, Michael A. Biological Anthropology/An Introductory Reader. Mayfield Pub. Co.: Toronto,


1999/2000.


Purves, William K, et al. Life: The Science of Biology. Sinauer Assoc.: Sunderland, 1998.


Bibliography


at end of paper


my knowledge, jen

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