Afarensis Research Paper

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Afarensis Research Paper



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Focusing on fossils dating back to more than 2 million years ago like Australopithecus Sediba, Australopithecus, and Homo habilis can begin to paint a picture for scholars about the origin of human beings. The controversial hypothesis of the hypoglossal canal sizes is indicative of speech, which assumed modern humans have a larger hypoglossal canal size compare to other hominids. These papers only focus on the anatomical aspects of the possible contribution to the human speech. The first paper was the study done by Bart de Boer. The human brain is a feat of evolution: it has allowed humans to have complex thoughts, conscience, build tools, create fires, and much more. Humans did not acquire this simply by chance. Evolution throughout our ancestral past has shaped and moulded the human mind to its state.

The earliest of ancestors, including apes, had very small brains, but as evolution progressed, so too did the human brain. The rapid progression. Australopithecus Research Paper Words 5 Pages. They returned in and the team found several hundred fragments of bones all belonging to a single individual. The individual was deemed to be a female based on the width of the pelvic opening. The species itself lived between 3. The most notable characteristic of Lucy was found in her knee, which indicated that the species walked upright or was bipedal. The ratio between arms and legs is called an intermembral index.

This suggests that A. They also ate plants as food and occasionally made symbolic or ornamental objects. There is evidence that they deliberately buried their dead and occasionally even marked their graves with offerings such as Because the skeleton is 40 percent complete, it facilitates a more accurate analysis in a broader sense. When comparing A. The Lucy skeleton is female and it is approximately 3 or 4 feet tall, while other A. While male chimpanzees average height is 4 feet tall and female average height is 3 feet tall, the male human height average is 5 feet 9 inches and the female average is 5 feet 3 inches. Therefore, like chimpanzees, Australopithecus afarensis has smaller body size than the modern human. Also, A. One of the most characteristic derived traits of modern humans is brain size.

Modern humans have between to cm3, chimpanzees have to cm3, and A Extra Credit Critical Thinking Questions Chapter 8 1: Do you thinking that knowing about aggression between groups of chimpanzees is useful in understanding conflicts between human societies? Why or why not? Answer: For many primate species, especially those whos ranges are small, contact with one or more other groups of conspecifics is a daily occurrence; and the nature of these encounters can vary from one species to another. Primate groups are associated with a home range, where they remain permanently. Within the home range is called a portion called the core area. This area contains the highest concentration of predictable resources, and it is where the group is most likely to be found.

Although portions of the home range may overlap with that of one or more other groups, core areas of adjacent groups do not overlap. In some species, however, other areas of the home range may also be offended. Not all primates are territorial. In general, territoriality is associated with species whose ranges are sufficiently small to permit patrolling and protection. But male chimpanzees are highly intolerant of unfamiliar chimpanzees, especially other males, and fiercely defend their territories and resources.

Therefore, chimpanzee intergroup interactions almost always include aggressive displays, chasing, and sometimes fighting. In recent years, a The clavicle length is also an important measure to know the position of the scapula 17 The pectoral girdle or shoulder girdle is the set of bones, which connects the upper limb to the axial skeleton on each side. It consists of the clavicle and scapula in humans and, in those species with three bones in the pectoral girdle, the coracoid.

It is a shallow pyriform, articular surface, which is located Since then, White and his team have discovered over fossil specimens of Ardipithecus ramidus. It is believed that the Ardipithecus ramidus species lived about 4. The Ardipithecus ramidus has some ape-like features but it also has human features as well which include smaller diamond shaped canines and some evidence of upright walking. There is a possibility that it is a descendant from an earlier species named, Ardipithecus kadabba. Her pelvis was shorter than other apes which indicate she could have possible been able to walk bipedally and she had a grasping big toe for moving throughout trees. Scientists believe that the Ardipithecus ramidus species were omnivores based on the enamel of their teeth.

Australopithecus anamensis was discovered in The history of this species began in the year when a research team led by Bryan Peterson from Harvard University found what appeared to be a single arm bone of an early human at a site of Kanapoi in northern Kenya. This revolutionary discovery has added an ancestor to our evolutionary tree. This specie, named naledi, has been classified into the genus, Homo, which includes modern humans. However, due to lack of information, this specie is thought to have three possible ages of existence. One, an early divergence of the specie Australopithecus anamensis,. DNA has challenged my conception of what it means to be human. By that I mean a couple who is unable to conceive can get to a sperm bank and literally pick and choose how they want their child to look like.

Another thing science has been able to do is cloning of others. Yes, it is possible for scientific models of human evolution. What is evolution? Biological evolution is the descent of organisms with modifications. Simply, the central idea of evolution is that all life forms which exist as of now or had. This theory relies on the fossil record being in a certain order, evolution occurring today, and having genetic similarities to animals.

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