Human Evolution Process
The evolutionary of human living has taken place over millions of years of geological time. It has evolved millions of generations, and billions of individuals. The human evolution is not understandable completely yet. Evolutionary change within a population can take place at different time and different rates, which yield different consequences. This process still taking place in the natural selection and human evolution. One species may be merged to the new species or developed to the next stage of the same species. Homo Habilis, Homo Erectus, Homo Heidelbergensis, and Neanderthals were the close ancestors of modern human, which developed from Australopithecus afarensis.
First, Homo Habilis was considered as the earliest
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They were found in Africa 600-200kya, Asia 200-130kya, and European 800-200kya. They had big cranial capacity. They were using Acheulean tools. They led to the development of Neanderthal, the closed ancestor of modern human. They occupied the continents from 130-30kya. There fossils were excavated in Neander Valley, Germany in 1856 by C. Fuhlrott. Their cranial and postcranial features were close to the modern human. They had thin cranial bone, which the capacity was about 1500cc; barrel-chested; and short distal limb segment. Neanderthal climate had changed significantly to cold weather. According to Bergmann’s and Allen’s rule, populations living in cold climates tend to have larger body (trunk) sizes and shorter extremities than those living in warm regions (“Human Biological Adaptability: Adapting to Climate Extremes”). Neanderthals developed Mousterian Tool Industry with greater variety of more standardized tool type. The high quality raw material was occasionally used. They used tools for cutting plant material, meat, scraping hides, and sharping tools. Sometimes, shaped bone was used as raw material. Those tools were stable over time and space. There are some new evidences that the Neanderthal had showed the artistic expression. At more than 39,000 years old, the etchings rival in age the oldest cave art in Europe — and they are the first to be unquestionably done by a Neanderthal (Rodríguez-Vidal, J. et
The first Neanderthal remains, discovered in Germany in 1856, were presented to the world of science at a meeting of the Lower Rhine Medical and Natural History Society held in Bonn in February 1857 and named a species, Homo neanderthalensis, by William King in 1864. Some Neanderthal fossils and other remains are in excellent condition, giving a good idea of Neanderthal culture. In 1887, two complete skeletons were found in a cave near Spy in Belgium, and more from sites in France in 1887, 1908 and 1911. These and other finds showed that the Neanderthals had populated Europe widely from about 130,000 to 28,000 years ago after which they became extinct. Most of these fossils were found in caves. Usually they are associated with cold
The first tools developed during the Paleolithic Era were made from chipped stones, wood and bone, and "nets from plant fibers and animal sinew" (Holt, Rinehart, & Wilson, n.d.: 2). The Neolithic Era brought forth greater specialization. People began to make chisels, drills, and saws to address specific needs and also polished stones to create sharper and more defined points (Holt, Rinehart, & Wilson, n.d.: 2). Language scholars trace the development of the first forms of systematized language to this era: "The crucial evolutionary development that led to the burst in creativity in the Neolithic was the emergence of human language as a method for integrating across cognitive modules" (MacWhinney 2005: 383). During this era, the use of stones began to have a utilitarian purpose in a manner that showed more sophisticated thinking.
Research speculates that the modern humans and Neanderthals coexisted in Europe for around 5,000 years. To put that into perspective, 5,000 years is around 250 generations in “human-time.” Sharing about 99.5% DNA with the Neanderthals, the largest bone in the foot may be one of the biggest differences that set the modern humans apart to out-live the Neanderthals. Both Neanderthals and modern humans have arched feet, but the height of heal differs. Dr David Raichlen found that because the heal of the Neanderthal was taller, it proved less spring during running and also stabilized the ankle. This made the Neanderthals known for walking, and to which why the lower heal increased the ability for modern humans to out run its closest cousin.
Human evolution is the biological and cultural development of humans. A human is any member of the species Homo sapiens, meaning "wise man." Since at least the Upper Paleolithic era, some 40,000 years ago, every human society has devised a creation myth to explain how humans came to be. Creation myths are based on cultural beliefs that have been adopted as a legitimate explanation by a society as to where we came from.
According to “Decoding Neanderthals’ they were consider primitive; without language and art or a high level of thinking. These species hunted by brute force with a simple stone tool. Also, that their intellect cannot be associated or compared with modern humans because their behavior was too way primitive. They began to disappear 40,000 years ago as modern humans came on the scene, stated by “Decoding Neanderthals” documentary movie. However, according to the genetic evidence shows a mysterious presence related with the modern humans genes. Neanderthal’s psychical features demonstrate some facts that these Homo species possessed intelligence. For example, big noses, bulky physiques-adaptation to cold, shorter than Homo sapiens, but bones were thicker, oblique forehead and heavy eyebrows. Also, often Neanderthal’s craniums are larger than modern humans. They had larger ankle joint, elbow joint and shorter forearm, broader ribcage and lower cranium. They were the most advanced group of primates, except modern humans. Neanderthals weren’t fewer intelligent than modern people; they had clothes and had some kind of language. Neanderthal living space showed complex use of the instrument, abstract thoughts and speech, burial of their dead and manufactured primitive art objects. Some stereotypes against these species are that they had limited stone tools and no art or personal ornaments; therefore they seemed less advanced than modern humans. Also, stereotyping their intelligence
Neanderthals were a species of archaic humans who migrated out of Africa and into Europe and Asia. However, around 40,000 years ago the large populations of Neanderthals died off and became extinct. The mysterious circumstances that surrounded their extinction drove various research teams to undertake the task of excavating numerous Neanderthal sites to collect fossilized bones, and artifacts in order to learn more about this group of ancestral humans. Over the past years, major technological advances have allowed researches to analyze the fossilized remains of the Neanderthals which led to major discoveries. For example, researchers at the Max Planck Institute for Evolutionary Anthropology found that the ear ossicles of Neanderthals and modern humans had similar functions but differed in terms of structure. In the study, the researchers used high-resolution computer tomography (CT) to scan numerous Neanderthal skulls from different sites in order to determine if there are ossicles present in the middle ear cavity (tympanic membrane). The scans revealed ossicles in fourteen different skulls which came as a surprise to the researchers since the bones of the ossicles are fragile and break down easily in the soil. The researchers then used microcomputed tomography scans and 3D geometric morphometrics in order to virtually reconstruct the bones of the ossicles which are composed of the malleus, incus and stapes. The 3D reconstructions of the ossicles allowed the scientists to
The most recent ancestor to the modern human, Homo neanderthalensis existed between 300,000 and 35,000 years ago. Originating in Africa, ancestors of the early Neanderthals migrated northwards almost 800,000 years ago. These migrants colonized much of the Old World with the majority based in Europe and small groups scattered throughout the Middle East and Asia. Historically, the Neanderthals were among the most resiliant creatures to exist on Earth. As a population, they thrived during the European ice age 40,000 years ago. This ice age enveloped the majority of Northern and Central Europe and due to their physique were the Neanderthals were able to surive. Physcially, the Neanderthals were larger and more muscular than today’s human
Neanderthals and modern humans became one species, through thousands of years of interbreeding. Supporters of this theory state that some modern day Europeans have facial features similar to Neanderthal man. Neanderthal genes may have been inserted into the human gene pool, and Human genes may have been added to the Neanderthals. At this point, Neanderthals and humans may have evolved together at an incredible rate, becoming one race in a relatively short period of time. On the other hand, a disease, a war, or an increase in population causing the natural resources to be inadequate for keeping so many hominids alive might have cut off Neanderthals suddenly from contact with the humans,
The most distinct of H. neanderthalensis is its unique cranial features. These features comprise of a large middle part of the face where their skull was more long and flat but had more of a protruding brow ridge. They also had slanting cheek bones and a large nose which is said to be for humidifying and warming cold, dry air. Their jaw and teeth are larger and have a hole called the retro molar space (behind wisdom teeth at the back of the
According to Diamond, Human ancestors moved to Eurasia around 1 to 2 million years ago and after human fossils began to resemble modern Homo sapiens and archaeologists called that period the Great Leap Forward. According to “Human Evolution and the Great Leap Forward - By Advocate De Waal Lubbe,” Scientists have estimated that humans branched off from their common ancestor, with chimpanzees, about 5-7 million years ago. Several species and subspecies of Homo evolved and are now extinct. These include Homo erectus, which inhabited Asia, and Homo Sapiens Neanderthalensis, which inhabited Europe. Archaic Homo sapiens evolved between 400,000 and 250,000 years ago.
Human evolution is “the process by which human beings developed on Earth from now-extinct primates” (Human Evolution, 2017). It is thought that human evolution began with a species of ape called Australopithecus, or one referred to as Neanderthals. These species most closely resemble the beginning of humans because they were a type of ape that walked up-right. As time progressed our primates began to adapt to the environment, and slowly changed into who we are today; Homo sapiens. Charles Darwin— an English naturalist, geologist, and biologist—was known for developing the theory of evolution. He explained that evolution was a “decent with modification” (On the Origin of Species, 1859). This meant that we all originated from a different species. However, we do not look exactly alike because we adapted to the environment we were exposed to. Although we all originated form a certain species, after undergoing serval mutations throughout generations to ensure
According to physical evidence, and theories, scholars have concluded upon a whole hypothesis. Based on their knowledge and belief, modern humans diverged from Homo sapiens between 200,000 and 150,000 years ago specifically in Africa, that between 125,000 and 60,000 years ago members of Homo sapiens left Africa, and that these
Understanding human evolutions is important for identifying the stages of humanity and for understanding how our societies have developed. When most of us think about human
Human evolution is the gradual process in which people, or Homo sapiens, originated from apelike ancestors. Scientific evidence, particularly in the form of fossils and secondary remains, show that the physical and behavioral traits shared by all people evolved over a period of approximately six million years. Humans are primates. Both genetic and physical similarities show that humans and the great apes (large apes) of Africa, chimpanzees (including bonobos, or so-called “pygmy chimpanzees”) and gorillas share a common ancestor that lived between 8 and 6 million years ago. The volume of fossils found in Africa suggests that most evolution occurred there and is likely the place of origin for early humans. This brings to fruition the “out of Africa” theory, also called the “single-origin hypothesis.”
Humans have existed on Earth for approximately 3.4 million years. The oldest known human ancestor is "Lucy," an Australopithecus. Over this extensive period of time, humans have evolved significantly. Homo Sapiens have grown from 3 to almost 6 feet (average), lost most of the body hair, became leaner and adapted to walking. Humans have come a long way, from Australopithecus to Homo sapiens, from living in trees to living in cities. Slowly, through hundreds of thousands of years, we mutated over and over again, natural selection ensuring that no destructive mutations continue. From the slow evolution, four distinctive species emerged and died out, each giving way to its ' descendant: Homo Habilis, Homo Erectus, Homo Sapiens Neanderthalesis, and Homo sapiens Sapiens.