HOMO NEANDERTHALENSIS2 Homo Neanderthalensis i.Introduction Homo Neanderthalensis is an extinct species within the Homo genus which is closely related to modern human beings. They are known to be found in the Western and central Asia and Europe. Additionally, they are fossil specimens popular of dating back to the Pleistocene period. The identity of the species “Neanderthal” originated from the modern spelling Neander Valley which is located in Germany where the species was first discovered. The Homo Neanderthalensis species is said to have existed from six thousand years ago to twenty-five thousand years ago with their final region of occupation being Gibralter. Current evidence which is both fossil-based and DNA oriented reveals that the modern human beings and Homo Neanderthalensis separated at least five thousand years ago. Other genetic calibrations vary slightly with this information by placing their statistics at six hundred and fifty thousand years ago. Homo Neanderthalensis lived together with the modern human beings for at least part of theirexistence.Therefore,thispaperissettopresentadetailedreportaboutHomo Neanderthalensis species. ii.First Discoveries A: Human Fossils The first collection of fossils which was regarded as Neanderthal was discovered in 1856 in the Feldhofer Cave of the Neander Valley in Germany near Dusseldorf. The fossils discovered by lime workers at the quarry are characterized with several limb bones, a robust cranial vault with a massive arched brow ridge but an absence of the facial skeleton. The limb bones were huge with big articular surfaces on the ends. In other words, the joints of the surfaces were
HOMO NEANDERTHALENSIS3 covered with cartilage. Additionally, the fossils had bone shafts which were bowed both at the front and the back. Other fossils that resembled Neanderthals from Feldhofer were later discovered in the 19thcentury and early 20thcentury in Belgium. B: Animal fossils Remains of huge extinct mammals were also found together with the human fossils. In the first place, anatomists concluded that the remains represented the earlier human inhibitors in Europe. Others argued that the fossils represented modern human beings (homo sapiens). The contradiction led to Charles Darwin's publication of On the Origin of Species (1859). iii.Morphological Characteristics A.Body proportions and Cold Stress Homo Neanderthalensis had unique adaptations that made them resistant to cold. Following theirfacialfeatures,thebodyproportionsoftheHomoNeanderthalensiswerevariable. However, it can be generally presented that Homo Neanderthalensis possessed a broad chest with shorter lower limb extremities compared to the upper legs and arms. Furthermore, their legs and arms are said to be heavily muscled, strong and massive. Their massive bodies must have protected the species from the stress of the cold winds(SNMNH, 2019).Genetic isolation is deemed to be the causal factor of the voluminous pulp cavities in the teeth of the species which has consequently protected Homo Neanderthalensis from the impact of cold temperatures. Despite such adaptations among the species, cold has been deemed as a causal factor for delayed maturity of the Homo Neanderthalensis’ children. However, the recent studies of the teeth reveal early dental development and weaning as the resultant outcomes of cold. B.Craniofacial Features
HOMO NEANDERTHALENSIS4 Even though most of the physical features of the Neanderthals are identical to those of the humans, the constellation of the features in Homo Neanderthalensis unique, with lots of differences among individuals as far as head and facial characteristics are concerned. Lo-vaulted cranium, prominent arched brow ridges, and large nasal and orbital openings were typical examples of the features that were more prominent in Homo Neanderthalensis than in the early and modern human beings. The rear and base of the skull served a significant role of supporting thehugemusculatureoftheneckamongtheHomoNeanderthalensis.Furthermore,the premolars and molars of the Homo Neanderthalensis were much smaller compared to those of the early and modern human beings. However, the Homo Neanderthalensis had large and more pronounced front teeth compared to those of modern human beings.Also, the lower jaw of the Homo Neanderthalensis was robustly built displaying a receding chin. The mental foramen that serves a significant role in transmitting nerves from the mind to the lower jaw was much placed at the back in Homo Neanderthalensis than it is in the early and modern human beings. Additionally, the space between the last molar and the ascending edge of the lower jaw was common among the individuals of the Homo Neanderthalensis species.Lastly, unlike in the modern human beings where the back curvature is huge, the Homo Neanderthalensis had an apparently less lumbar lordosis. C.Other Adaptations The flattened cranial base among the Homo Neanderthalensis resembled that of the modern infants before two years of age. It has been due to this fact that researchers have been basing their assumptions that Homo Neanderthalensis lacked the capacity for complex communication like the spoken language. However, this assumption is not enough to support their argument. Therefore, a study in Kebara, Israel, on the hypoglossal canal and hyoid has revealed a similarity between the vocal tract of the modern human being and that of the Homo Neanderthalensis
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HOMO NEANDERTHALENSIS5 (Dorey, 2019). Additionally, the 2000s genetic studies that involved the FOXP2 gene of the Homo Neanderthalensis revealed that the species used to communicate in the same way as modern human beings. iv.Homo Neanderthalensis’ Culture A.Hunting Homo Neanderthalensis were hunters. Some of the tools found to be used by Neanderthals include the scrappers. Scrapers were used for tanning hides after the hunting activity. The modern human beings are said to have adopted the upper Paleolithic technology from their predecessors.TheChatelperronianindustrywhichinvolvesthetwoearlystagesofthe technology reveals the fact that modern human beings are not the sole makers of such a sophisticated technology (Nicolas, 2018). Homo Neanderthalensis is also said to have used spears in the hunting operation. Furthermore, several tools have been found which served a fundamental purpose of sharpening the spears for the hunting operation. Therefore, it is clear that the Homo Neanderthalensis practiced hunting as their cultural activity. B.Sieving Apart from the hunting cultural activity, there is a likelihood that the generation engaged heavily in the sieving operation. Tools such as scrappers were used for tanning hides. We all know that hides are used for making clothes. In addition, awls have been found to be used by the species in making holes in the hides to make loose fitting clothes. Such tools reveal that Homo Neanderthalensis practices sieving as their cultural activity. C.Art Work NonutilitarianartifactshavebeenrecoveredalongsidetheremainsoftheHomo Neanderthalensis. The artifacts have been associated with cognitive functions rather than needs
HOMO NEANDERTHALENSIS6 for survival.Some of the artifacts seem to have been collected due to their beauty and intrinsic value rather than Utilitarian functions. Also, ornaments, bone tools, and colorants which have been found in regions which are not necessarily their origin reveal their intrinsic value rather than the utilitarian value. Furthermore, the tools have been modified into attractive designs. Homo Neanderthalensis also engaged in designing features, claws, and shells before wearing. Homo Neanderthalensis made use of naturally occurring pigments like the iron oxide from impure iron ore and red ochre. The pigments were then mixed with fat and smeared to shells transporting them from the places of origin. They also greatly exploited the black mineral pigments like manganese oxides.As these facts reveal Homo Neanderthalensis as artists who greatly valued beauty. D.Music Music is a prominent cultural activity among Homo Neanderthalensis. A flutelike wind instrument was found at Homo Neanderthalensis site in Slovenia. This instrument is an indication that Homo Neanderthalensis made music. E.Ritualistic Cultural Behaviour Homo Neanderthalensis buried the dead. Le Moustier is a typical example of the Neanderthals site which reveals symbolic and ritualistic cultural behavior. Burials were revealed by the presence of pit modification like La Chapelle-Aux-Saints.Flowers of medicinal value were also placed on the graves. Such a habit is an indication of the Homo Neanderthalensis’ traditional medicine. F.Fishing Homo Neanderthalensis engaged in the fishing activity. Most specifically, they ate “wolfish” diets. The presence of carbon isotopes in the bone collagen after analysis reveals that Homo
HOMO NEANDERTHALENSIS7 Neanderthalensis ate meals and diets that are similar to that of carnivores. They ate both mollusks and fish. v.Pathology and Trauma The remains of Homo Neanderthalensis reveal enamel growth and defects such as arrested development during the period of nutritional stress or illness in the childhood stages. The cut marks found on the bones in remains which were found at Goyet in Belgium and El Sidron in Spain is an indication of cannibalism. Traumatic lesions not only evidence traumatic injury but also symbolize healing. The injuries sustained on the arms and head are linked to close contact hunting which involves wrestling of the pray to death. vi.Genetics Research on the genetic composition of the Homo Neanderthalensis in relation to that of the human being moved rapidly in the twenty-first century. In 2010, there came a composition of the Neanderthal nuclear genetic sequence. The DNA revealed the likelihood of red hair and pale skin among some of the Homo Neanderthalensis. Genetic studies of the remains collected from sites with multiple individuals reveal the likelihood of the Homo Neanderthalensis lining in small isolated, close-knit extended families. The genetic composition also revealed that male was closely related which is an indication of patrilocality among the groups. DNA also reveals that the Eurasian population is made up of 1-4% of the Homo Neanderthalensis gene composition. vii.Homo Neanderthalensis and Modern Humans Interbred Apart from the fact that Homo Neanderthalensis have been found to have lived together with modern human beings at one point in time, DNA tests have revealed interbreeding between the two (Estes, 2015). The mating took place in the middle east after modern humans have left Africa. As a result, there existed a gene flow from the Homo Neanderthalensis to modern
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HOMO NEANDERTHALENSIS8 humans. The Homo Neanderthalensis' DNA is 99.7% identical to that of the modern human being which is revealing evidence of the mating between the two (Than, 2016; Chibber, 2018). Furthermore, all the modern ethnic groups except the Africans have been found to possess a Homo Neanderthalensis DNA. The first opportunity for the Homo Neanderthalensis to interbreed with the modern human beings is said to have occurred sixty thousand years ago in the middle east just adjacent to Africa. viii.Extinction of the HomoNeanderthalensis Several explanations present the reasons behind the extinction of the Homo Neanderthalensis. Some of the reasons are discussed below: A.Climate Change Homo Neanderthalensis are said to have been outcompeted by the warm and fluctuating climate (Bradshaw Foundation, 2016). They could not deal with the low temperatures during the glacial period. The rapidly fluctuating climates created ecological changes which could not be adopted by the Homo Neanderthalensis. Familiar plants and animals could easily be replaced by newvarietieswithinthelifetimeofHomoNeanderthalensis.Furthermore,theirambush technologies must have failed due to the replacement of the trees with grasslands. Most of Homo Neanderthalensis must have died during the period of food Scarcity. B.Interaction with Humans Modern humans may have led to the extinction of Homo Neanderthalensis thirty thousand years ago (Biever, 2015). The extinction rose from the homo sapiens unlocking of the secrets of free trade (Biever, 2015). The modern human beings were more organized in their trading operation unlike for Homo Neanderthalensis who engaged in unorganized trade that resulted in their extinction.
HOMO NEANDERTHALENSIS9 ix.Conclusion This paper has brought forth extensive facts about Homo Neanderthalensis. Such fact includes the ancient discoveries, their period of existence, morphological characteristics and culture. Furthermore, the report has explored their genetic makeup and DNA results regarding theirinteractionandinterbreedingwiththehomosapiens.Lastly,thereportprovidesa discussion of why Homo Neanderthalensis came to extinction whereby the climatic changes and interaction with homo sapiens are brought forth as the key causal agents.Therefore, this report is recommended as a reference regarding Homo Neanderthalensis. However, the report has been faced by external factors such as limited word count and time frame. However, a detailed expiation of the content in areas that are shallowly tackled is recommended on future researchers on the topic.
HOMO NEANDERTHALENSIS10 References Biever, C. (2015).Free trade may have finished off Neanderthals [online]. Retrieved from: https://www.newscientist.com/article/dn7221-free-trade-may-have-finished-off- neanderthals/ Bradshaw Foundation (2016).Homo neanderthalensis [online].Retrieved from: http://www.bradshawfoundation.com/origins/homo_neanderthalensis.php Chibber, K. (2018).Our prehistoric ancestors all mated with one another [Online].Retrieved from:https://qz.com/1367826/our-prehistoric-ancestors-all-mated-with-one-another/ Dorey, F. (2019).Homo neanderthalensis-The Neanderthals [online].Retrieved from: https://australianmuseum.net.au/learn/science/human-evolution/homo-neanderthalensis/ Estes, C. (2015).It was not just Neanderthals: Ancient humans had sex with other Hominids [online].Retrieved from:https://www.theatlantic.com/technology/archive/2011/09/it- wasnt-just-neanderthals-ancient-humans-had-sex-other-hominids/338117/ Nicolas, G. (2018).Neanderthal [online].Retrieved from: https://www.britannica.com/topic/Neanderthal SNMNH (2019).What does it mean to be human [online]?Retrieved from: http://humanorigins.si.edu/evidence/human-fossils/species/homo-neanderthalensis Than K. (2016).Neanderthals, Human Interbred- First Solid DNA Evidence [online].Retrieved from:https://news.nationalgeographic.com/news/2010/05/100506-science-neanderthals- humans-mated-interbred-dna-gene/