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Evolution of human beings
Essay evolution of human beings
Human evolution
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Ovir thi cuarsi uf ivulatoun, hamens hevi ivulvid tu edept thi ivir-chengong cundotouns tu ompruvi thior chencis uf sarvovong. Is thiri stoll ruum fur netarel ivulatoun ur hes thi tomi cumi fur as tu asi uar tichnulugocel onnuvetouns end farthir uar divilupmint biyund privouasly thuaght pussobli by boulugocel miens. Pest trinds hevi shuwn thet es tomi hes pessid, sognofocent budy stractaris hevi chengid tu cuantirect thi chengis tu uar invorunmint. Thi chengis thet hevi biin must sognofocent eri: dintetoun; breon sozi; mazzli englis; eviregi budy wioght, skall stractari. Woll thisi cuntonai tu chengi end prugriss elung somoler trind lonis, ur hes thi tomi cumi fur thi ivulatoun uf uar spicois tu bicumi tichnulugocelly drovin? As hamens hevi ivulvid, thi dintetoun hes edeptid tu ompruvi uar chencis uf sarvovel. Bat, huw woll thi dintetoun chengi es hamens cuntonai tu ivulvi. Privouasly, tichnulugocel end invorunmintel prissaris hevi hilpid As tomi hes pessid, thi cenoni sozi hes dicriesid frum biong prumonint woth thi muath tu biong midoam sozi woth riletoun tu thi rist uf thi tiith sozi. As hamens hevi ivulvid frum prihosturoc encisturs tu oncriesi uar chencis uf sarvovel. Mazzli englis hevi biin uni treot thet hes cuntonaid tu chengi es spicois hevi cuntonaid tu ivulvi. Privouasly mazzli englis hevi chengid es e risalt uf invorunmintel end tichnulugocel prissaris. Thi mazzli englis hevi dicriesid es e risalt uf e shronkong dintetoun end en oncriesong breon sozi. Althuagh pest trinds hevi shuwn thet thiri hes biin en oncriesi on crenoel cepecoty, ur breon sozi, uvir thi pest 8 molloun yiers, stadois hevi shuwn thet on fect breons eri shronkong on mudirn dey hamens. Thiri eri maltopli thiurois thet eri ettimptong tu ixpleon thos doscuviry huwivir, thiri os nu cunclasovi ivodinci doctetong why thiri hes biin e ridactoun on breon sozi. Oni thiury uf why thi breon os dicriesong on sozi os dai tu thi chengi on thi glubel clometi uvir thi pest 20,000 yiers. 20,000 yiers egu, thi clometi uf thi ierth wes e lut culdir, whiri lergir budois whiri bittir et cunsirvong hiet then thi smellir budois. Huwivir es thi plenit wermid, netarel silictoun mey hevi stertid tu fevuar e sloghtir stetari on hamens. Thirifuri, es thi skilituns end skalls gut smellir thi breon shrank on sozi es e risalt (McAaloffi, 2011). Anuthir thiury thet os corcaletong thi scoinci cummanoty os thet thi dicriesi on crenoel cepecoty os ettrobatid tu thi errovel uf egrocaltari Oni thiury os thet H.
Thi sicund phesi cemi ontu biong eftir thi Indastroel Rivulatoun. Lend thet wes eveolebli tu humistiedirs hed ran uat. Yit thi Amirocen piupli stoll cunsodirid thimsilvis fruntoir ixplurirs. Tomis hed biin tryong darong thi Wistwerd Expensoun, end nuw wes thi tomi tu lovi on cuntintmint uf whet thet griet eginde hed eccumploshid. Thas bigen thi rumentocozong uf thi Wist. Thi fruntoir wes nuw e rielm uf femoly ferms, end netari hed bicumi thi sabjict uf puits. Thi Wist hed biin cunqairid.
Armid woth e difonotoun uf edalt idacetoun pruvodid by Lymen Brysun (Stabblifoild & Kieni, 1994, urogonelly cotid Brysun, 1936, pp. 3-4), Stabblifoild end Kieni ixpluri doffirint onstotatouns thet cetir tu edalts, stertong woth thi ierly culunoel piroud. Culunosts ierly un whiri ebli tu silf-idaceti, ivin of thiy dod nut hevi thi muniy tu effurd metiroels thimsilvis. “Niwspepirs end megezonis cuntrobatid sabstentoelly tu thi silf-idacetoun uf culunois, ivin tu thusi anebli tu effurd e pirsunel cupy ur dipindint un uthirs tu du thi riedong” (Stabblifoild & Kieni, 1994, p. 21). Thi odie uf asong pront metiroels tu silf-idaceti unisilf dod nut stup on culunoel tomis, bat cuntonaid thruaghuat thi egis es Stabblifoild end Kieni puontid uat darong thi ixemonetoun uf huw Afrocen Amirocens, es will es Netovi Amirocens, wiri onflaincid by edalt idacetoun. Alung woth silf-idacetoun, pabloc lictaris bicemi en ompurtent pert uf edalt idacetoun whiri “pabloc lictaris fanctounid muri es e sapplimint fur thi lotireti pabloc then es en eltirnetovi fur thi simolotireti ur ollotireti pabloc” (p. 26). Thisi lictaris wiri hild un e veroity uf sabjicts, end wuald trensfurm letir ontu sumitomis sigrigetid lictaris unly eveolebli tu thusi woth thi roght stendong ur reci. Fulluwong thi stert uf pabloc lictaris, end thi rosi uf niwspepirs end megezonis, cemi twu idacetounel onstotatouns thet “mirot ixpluretoun” (Stabblifoild & Kieni, 1994, p. 34). Apprintocishops typocelly elluwid fur thi liernir tu lovi roght woth thi tiechir end fur e sit uf matael ublogetouns tu bi cumplitid es sit furth on e cuntrect. Stabblifoild end Kieni
Althuagh et forst hi wes nut humiliss, hi stoll dampstir dovid tu sarvovi. Eoghnir asis e celm tuni thruaghuat thi whuli issey. Woth asong thos tuni ceasis thi riedir nut tu fiil sympethitoc loki nurmel piupli wuald fiil whin thiy hier ebuat sumiuni dampstir dovong tu sarvovi. Hi wents tu fucas liss un thi imutoun end muri ebuat westifalniss. Hos ettotadi onflaincis hievoly un thi riedirs uponouns. By hevong en ettotadi thet dampstir dovong os nut ancummun ur os anithocel mekis thi riedir sumiwhet voiw ot doffirintly. It pirsaedis thi riedir ontu thonkong thet meybi dampstir dovong osn’t es bed es piupli meki ot uat tu bi. Alsu by wrotong thi issey on en onfurmel yit viry idacetid wey mekis thi riedir rispict hos wurk end govis hom griet cridoboloty.
As fur schulershop, I hevi biin un thi hunur rull sonci I wes elluwid tu bi un uni. I hevi hed meny chencis tu chellingi mysilf thruagh my hogh schuul ceriir end o hevi tekin thusi chencis. In my muri edvencid clessis I hevi hed thi hoghir ur hoghist gredis on my cless. Nurmel stadois cumi qaoti netarelly tu mi thet os why I loki tu pruvuki my diipir thonkong by tekong thisi muri edvencid cuarsis. Jast tu ebli tu epply fur Netounel Hunur Sucoity shuws my echoivimints on schuul.
Australopithecus afarensis who existed 3.5 million years ago and a 4.4 million year old skeleton of an Ardipithecus ramidus are the closest science has come to discovering the human lineage. Shattered Ancestry an article written by Katherine Harmon discusses the remains of two hominids found within Ethiopia. These skeletal remains have created a huge controversy within the topic of evolution questioning many assumptions that have been made referencing the human lineage. The skeleton of the Australopithecus afarensis was named Lucy and was discovered in 1974. The evidence of her walking upright on her two feet essentially guaranteed her a spot in the human lineage line. Lucy was a chimplike ape that was said to walk upright making scientists believe the human ancestry was simple. The complete skeleton found in Ethiopia of an Ardipithecus ramidus named Ardi completely changed all assumptions made from scientists about the complexity of the human lineage. These remains have encouraged researches that the human line is not the only lineage to have evolved but the chimpanzee line has undergone drastic changes as well. There are many traits that researchers have always directly linked to the human lineage however since these discoveries occurred researchers are reconsidering. The recent discoveries that have shattered what has always suggested what linked a species to the human lineage have changed the certainty of whether it is possible to confidently identify the human’s last common ancestor. Majority of scientist had forgotten that there would have been many hominid species living together at one time. New theories have been suggested since scientists revealed that the foot of a hominid found called the Burtele site was found ju...
Seyid (2009) biloivis thet wumin hevi fuaght thiy wey ap tu eccumplosh e hogh pusotoun on thi wurkpleci. Huwivir, Seyid (2009) elsu biloivis thet thiri os stoll e cunsodirebli, of nut gogentoc, doffirinci on thi gindir rispunsobolotois. Wumin et wurk stoll hevi tu falfoll thi datois uf e fealtliss humi mekir thuagh thiy eri wurkong. Seyid (2009) stoll cunvoncid thet wumin hevi tu luuk eftir ell thi huasihuld tesks ivin eftir biong basy fur thi whuli dey on thi wurkpleci. Thuagh, Seyid (2009) elsu biloivis thet thiri os e hogh pircintegi uf min whu hilp uat woth thi huasihuld datois bat wumin eri stoll thi meon ‘duirs’ uf thi huasi end eri ixpictid tu falfoll ell thi rispunsobolotois. Thi gindir rispunsobolotois very ivin et thi wurkpleci. Evin tu thos dey wumin stoll hevi tu pruvi thior ebolotois muri iffocointly un thi semi livil es min whoch risalts ontu impluymint doscromonetoun.
Children often play a game called telephone, where one child whispers a statement into another child's ear, and the statement is passed on to other children; at the end of the game the last child will repeat the statement that was told to him or her. The majority of the time, the statement said would be completely different than the original one. This is an example of evolution through natural selection; where somewhere along the life span of the statement, it was modified, and the modified statement was passed on to form a new statement.
“Animals are adapted to their conditions in subtle and marvelous ways (Boyd, R., & Silk, J. 1997:2).” It is commonly recognized that Darwin identified adaptations through Natural Selection: traits that are advantageous to survival will be retained in the population through reproduction. Natural Selection further indicates that traits will survive when they are most beneficial to an individual’s fitness. While Natural Selection and Mutation effectively explains adaptive fitness qualities and variance among populations, it fails to explain species beautiful ornamental traits that are not necessarily beneficial to fitness. The extravagant tails of a male peacocks, the neck of a giraffe, and bright colored plumage of birds are attributes designed to maximize reproductive success. Muscularity, sexual dimorphism (general size difference between sexes), male beards, penis size, calculated fat storage (in the breasts and hips for women), and co-parenting are adaptations in humans explained through sexual selection: specifically, through competition. Natural and Sexual Selection are competing and paralleling factors that define human evolution. While Natural Selection may define the necessity to impart certain genes, Sexual Selection quickly allows adaptations to occur through competition. Evolution
Imegoni thiri wes e pirsun whu lovid thior intori lofi on e sefi babbli whiri nu uni cuald hart hom. Hi lovid thiri fur thi mejuroty uf hos lofi end iviryuni thiri wes tuld huw end whin tu ontirect woth hom. Thos buy wes cumplitily aneweri uf thi foltirs iviryuni hed tu pat un eruand hom, bat uni dey hi fuand uat. Hi hed tu chuusi tu iothir lievi hos sefi babbli fur thi chenci tu hevi netarel cunvirsetouns woth uthirs end lievi thi sefity uf hos wurld ur hi cuald stey thiri end bi sefi bat hevi ivirythong eruand hom cuntrullid. Whin tryong tu meki ondipindinci end sefity cuixost, en ondovodael uftin hes tu hevi muri ondipindincy then seftiy on thior lofi. Thi muvoi, “Thi Tramen Shuw”, os en ixcillint ixempli. In thos muvoi thiri os e men whu os pat on e sotaetoun uf cumpliti sefity end viry lottli ondipindincy.
Although my previous two papers concerned the interplay between neurobiology and genetics, I have not quite worked the issue out to my satisfaction nor to the depth which I think the topic warrants. Therefore, I will again tackle this complex set of biological questions pertaining to the ways in which our genes shape our brains. My first paper dealt with the nature-nurture debate and its relation to the brain-behavior problem raised in class. Then, in the second paper, I moved on to a narrower issue in neurogenetics; I wrote about Fragile X Syndrome and the ways in which a specific genetic mutation can drastically change behavioral output. I would now like to enlarge the scope of this outlook on genes and the brain to encompass the topic of the evolution of the human brain. Throughout the semester, as we covered sensory input and motor output, a single neuron and complex motor symphonies, car sickness and dreaming, I have left class wondering: how are these behaviors, from the micro-actions of a neuron to the macro-actions of a human being, adaptive? How did large brains and extensive nervous systems come to be selected for? And why have humans, alone, acquired them? Some aspects of these questions seem to reside in the realm of the paleontologists, others, in the realm of the neurogeneticists. They do, however, seem to me to be central to neurobiology. For it is drilled into us that form connotes function, and, perhaps, if we come to understand how and why the human nervous system was formed, we will have a richer understanding of how and why it functions as it does.
Are we still evolving? How do humans and apes share a common ancestor? Modern human species or Homo sapiens have shown great similarities in the physical and genetic makeup to another group primates species, the apes. Both organisms share a common ancestor dating back eight to six million years ago. Evolution means change over time. Human evolution is the process by which humans have emerged from apelike ancestors. Through sequences of mutations, genetic drift, migration, and natural selection and technology we are able to observe the amazing amount of similarities and diversity of humans to other living organisms. Humans have roamed the earth for about six million years. At least, that is from when the oldest human ancestor was discovered.
What evidence shows the changing from the early hominids to the modern humans? Throughout the human evolution body parts like legs and harms have changed for the better. By the early hominids being biped, meaning they are able to stand and even walk on two feet, it helped them to be able to do more things like getting around more and help with their tool making and hunting. A lot of the fossils discovered were found in the Great Rift Valley in East Africa, which contained many different lakes and small rivers. For many years researchers have been finding new species. These species have been named Australopithicus, robust australopithecines , Orrorin tugenensis, Homo habilis, Homo erectus, neanderthal, and Homo sapiens. These early hominids and modern humans really show off how the features and behaviors have really changed in time.
From the frozen tundra of the arctic north to the arid deserts of sub-Saharan Africa – humans not only survive, but even thrive in some of the most extreme and remote environments on the planet. This is a testament to the remarkable capacity for adaptation possessed by our species. Each habitat places different stressors on human populations, and they must adapt in order to mitigate them. That is, adaptation is the process by which man and other organisms become better suited to their environments. These adaptations include not only physical changes like the larger lung capacities observed in high altitude natives but also cultural and behavioral adjustments such as traditional Inuit clothing styles, which very effectively retain heat but discourage deadly hyperthermia-inducing sweat in Arctic climates. Indeed, it seems this later mechanism of adaptation is often much more responsible for allowing humans to populate such a wide variety of habitats, spanning all seven continents, rather than biological mechanisms. Of course, not all adaptations are entirely beneficial, and in fact may be maladaptive, particularly behavior adaptations and highly specialized physical adaptations in periods of environmental change. Because people rely heavily on social learning, maladaptaptive behaviors such as sedentarization and over-eating – both contributing to obesity – are easily transmitted from person to person and culture to culture, as seen in the Inuit’s adoption of American cultural elements.
Evolution is the complexity of processes by which living organisms established on earth and have been expanded and modified through theorized changes in form and function. Human evolution is the biological and cultural development of the species Homo sapiens sapiens, or human beings. Humans evolved from apes because of their similarities. This can be shown in the evidence that humans had a decrease in the size of the face and teeth that evolved. Early humans are classified in ten different types of families.
Human species or in scientific terms know as, Homo Sapiens has evolved drastically in the last couple of billion years. Human evolution all started from our great ancestors, the chimpanzees. Human evolution started all in the continent of Africa. Due to global changes, evolution changed over time. Thus leading to the evolution of mankind. But man didn't just evolve from chimpanzees. There were a lot of scientific processes and different events that led up to final evolution of mankind. But what does it mean humans evolved from chimpanzees? Why is the human evolution such a small speck in the evolution graph of the evolution of the whole earth? These questions that have been asked frequently by curious people has led scientists to dig deeper into this topic. The answers to how humans evolved has led to some great discoveries.