The History of Hominid Evolution Essay

Other than this remarkable jump, the physical features stayed relatively constant over those 1.4 million years(Washburn, McCown 1972). Some anthropologists say that their supra-orbital ridges were slightly more pronounced than previously, cranial bones were heavier and there was still no protruding chin but their molars had decreased in size (Washburn, McCown 1972).

We share almost 99 percent of our genetic material with chimpanzees. Yet we have several traits that are very different. Two legged walking, or bipedalism seems to be one of the earliest of the major hominine characteristics to have evolved. To

Australopithecus Boisei: Similar to the A. Aethiopicus in terms of the upper shape with the vertical line of bone

The history of life on earth goes back to millions of years. Many species and creatures evolved and changed through time, leading up to what we know today as, modern man. One of the creatures most similar to modern man is the Neanderthals; they are sometimes referred to as “early modern humans.”

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 lower jaw was big and a chin was developed. It had small incisors on the upper and lower jaws for nipping the vegetation.

This chapter beings explaining the evolution of mankind. Prior to 11,000 BCE, all humans were equal. Due to our evolutionary past, we branched off from apes to humans and spread around the world. Nearly 4 million years ago, humans began their mark on earth in Africa. Jared Diamond compares human development on all seven continents about 13,000 years ago. Although many early humans were found primarily in Eurasia and Africa, over time they expanded and gained new territory. The early humans created tools as they evolved, and many became hunter and gatherers. Then, human history made a Great Leap Forward around 40,000 BCE. The Great Leap Forward was when the earliest humans created new technology and exciting innovations that did not exist previously

Much of Lovejoy 's discussion of the development of bipedalism in hominids seems tangential at best, with lengthy forays into the different patterns of dentition

In the science of paleontology, the history of life is studied. Paleontologists study fossils to learn the past ecologies, evolution, and the origins of humans. In order to understand the processes that have led to both the origination and destruction of organisms since life began, paleontologists incorporate both scientific knowledge and studies. Fossil findings are critically important for confirming predictions of evolution theory. Of the many discoveries that are made yearly to add depth to the understanding of evolution, an example is a recent discovery of a creature they named Tiktaalik. The Tiktaalik was uncovered to be a transitional animal between shallow-water fishes and limbed animals. The creature supports the idea that it emerged from both mammals and reptiles, suggesting that the two are related. These findings support prediction of evolution, contradicting the belief that God

Many of the features that distinguish Homo erectus from other hominin species—both earlier and later species—are seen in the skull. The average brain size of Homo erectus is estimated to have been roughly 900 cubic centimeters (cc.), which is larger than Homo habilis, but smaller than that of Homo heidelbergensis and other later forms. The size of the Homo erectus brain is negligibly larger than in Homo habilis when it is considered as in relation to body size—i.e., brain size increased substantially in Homo erectus, but, because body size also increased, the relative size of the Homo erectus brain is not considerably larger than that of Homo habilis. The absolute in brain size, however, caused changes in the brain case; for instance, the

Approximately 4 million years ago a wonderful evolutionary phenomenon was happening in Africa. Early hominids, man’s ancestors, were beginning a giant leap in their evolution. These hominids were moving out of the forest and beginning to walk upright, out on the open plains (Fagan, 98). This change from quadrupedalism was the most significant adaptation that ever happened to these early hominids. It caused many adaptations that make man what he is today. This process occurred in early hominids for many different reasons, each reason helping to perfect the upright walking posture. Bipedalism is thought to have occurred because of changes in environment, feeding habits, thermal regulation, and

The early African Homo Erectus fossils, which are sometimes called Homo egaster, are the oldest known early humans. They are similar to modern humans but taller, stronger, and had a pronounced ridge over their brow Many of their fossil remains have been found in places such as Africa and Asia, which can be dated to be about 1.6 million years old. From fossil findings researchers have revealed that these early humans have possessed modern-human-like body proportions. They have also found that these features are considered adaptations to live on the ground. Fossil remains have also revealed between Homo erectus and that of the Great Apes. One other link to Homo erectus is to that of a major innovation in stone technology. Throughout research and remnants of the Homo erectus scientist were able to discover evidence of the role of culture throughout this group of humans. Throughout our further findings we will look at variations and how it once effected Homo erectus, and the modern human of today. Great discoveries have been made, and with our technological advancement we can better our findings and interpretations of the characteristics and evolution of Homo erectus, so that we can have a better understanding of our evolution.

The next species to appear were the Homo erectus which might have descended from Homo habilis. They were the first human whose fossils were found outside of Africa. They also had larger brain than the species before them. Homo sapiens sapiens came after the Homo Neanderthalensis; they are the only human species around. This could have been due to the result of increase brain sizes that allows more cognitive abilities that help them adapt to different environment changes and hence survive. Global evidence have been found of art, music, and culture and advanced tool making. In Mithen’s 3 phase of mind proposes that the shape of the Neanderthals’ frontal lobe was similar to the one of the modern Homo sapiens and this indicated that they were able to cope with complex cognitive functioning. Evidence for this could be explained using the phonological approach by Frank Gall (1758-1828).

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.

Human evolution according to research started over 6 million years ago. The outcome of the evolution process is the current human beings. Scientific studies have revealed over the years a remarkable affinity between the chimpanzees/Apes and human beings. Even though this reality is not a definitive prove that human beings evolved from apes, it does show that the human beings are in one way or another related to other primates. Scientists suppose that the humans and the primates shared a common ancestor. The subject of what makes humans what they are and their origin has been the exclusive purpose leading to many scientific studies globally (Coolidge & Wynn, 2011). Studies believe that Africa was the origin of evolution millions of years ago. Fossil remains have been discovered in different parts of Africa as well as other regions of the world. Different hominins have been discovered around the world in the last 1 million years. Thus, the different discoveries have led to comparisons between the various species of hominins to clarify on their similarities as well as differences. This essay seeks to explain whether they were distinctively different species or regional versions of the same species.