Human Evolution Essay

The find consisted of a full face, teeth and jaws, and an endocranial cast of the brain. Australopithicus garhi It is known from a partial skull that differs from previous australopithecus species in the combination of its features. This species possessed the largest sagittal crest in any known hominid. They had extremely large teeth especially the rear ones. , a culture-bearing upright-walking species that lives on the ground and very likely first evolved in Africa about 315,000 years ago.

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Particular attention is paid to the fossil evidence for this history and to the principal models of evolution that have gained the most credence in the scientific community.

the article evolution for a full explanation of evolutionary theory, including its main proponents both before and after Darwin, its arousal of both resistance and acceptance in society, and the scientific tools used to investigate the theory and prove its validity.

) were archaic humans who emerged at least 200,000 years ago and died out perhaps between 35,000 and 24,000 years ago.

They manufactured and used tools (including blades, awls, and sharpening instruments), developed a spoken language, and developed a rich culture that involved hearth construction, traditional medicine, and the burial of their dead.

Human Evolution Ardipithecus ramidus This species was announced in September 1994.

It is thought to be the oldest known hominid species. The majority of the fossils found were skull fragments.That we and the extinct hominins are somehow related and that we and the apes, both living and extinct, are also somehow related is accepted by anthropologists and biologists everywhere.Yet the exact nature of our evolutionary relationships has been the subject of debate and investigation since the great British naturalist apes,” and modern scientists would view such a statement as a useless simplification—just as they would dismiss any popular notions that a certain extinct species is the “missing link” between humans and the apes.The answer to this question is challenging, since paleontologists have only partial information on what happened when.So far, scientists have been unable to detect the sudden “moment” of evolution for any species, but they are able to infer evolutionary signposts that help to frame our understanding of the emergence of humans.Strong evidence supports the branching of the human lineage from the one that produced great apes (orangutans, chimpanzees, bonobos, and gorillas) in Africa sometime between 6 and 7 million years ago.Evidence of toolmaking dates to about 3.3 million years ago in Kenya.Other evidence suggests that this species was bipedal. Some fossils found indicate that ramidus may have been a forest dweller.The teeth resemble something between earlier apes and A. The fossils were discovered by a team led by Tim White in Aramis Ethiopia. Australopithecus anamensis This species was named in August 1995. Their body sizes and brain sizes were slightly larger than afarensis.This ancient primate has not been identified and may never be known with certainty, because fossil relationships are unclear even within the human lineage, which is more recent.In fact, the human “family tree” may be better described as a “family bush,” within which it is impossible to connect a full chronological series of species, leading to .

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