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Personnel Opinion

Due to the amount of discredited evidence in the Multiregional Model, I feel that the Out Of Africa Model is a much stronger contestant. Research that has gone into the Out Of Africa Model is more current, has not been disproved and has much more reliable evidence. Therefore I personally think that the Out Of Africa Model is the most feasible explanation for the evolution of the modern human.

Out Of Africa Evidence

  • The oldest recorded Homo Sapien Fossils were found in Africa
  • Fossils show that modern humans quickly replaced earlier humans living in Europe and Western Asia
  • All living people, show very little genetic diversity. This is assumed to be the result of relativity recent replacement of earlier and more diverse populations
  • DNA studies on modern humans all suggest a common ancestry from a small gene pool. Most of which. point to Africa as being the origin of this populations

Bibliography

  • http://anthrojournal.com/issue/october-2011/article/analysis-of-two-competing-theories-on-the-origin-of-homo-sapiens-sapiens-multiregional-theory-vs-the-out-of-africa-2-model
  • http://anthrojournal.com/issue/october-2011/article/analysis-of-two-competing-theories-on-the-origin-of-homo-sapiens-sapiens-multiregional-theory-vs-the-out-of-africa-2-model
  • http://australianmuseum.net.au/when-and-where-did-our-species-originate
  • http://www.sciencemag.org/news/2007/07/out-africa-sequel
  • http://www.actionbioscience.org/evolution/johanson.html

Multiregional Model

The Multiregional Model suggest that when human ancestors first left Africa, they spread across the globe, inter-breeding and formed regional groups across Africa, Asia and Europe. Modern humans then continued to evolve in their regional groups, rather than from one single group in Africa.

The Multiregional Model was founded by Franz Weidenreich in 1940

Multiregional Evidence

  • There have been similarities found between skulls in modern humans and ancient humans from the same regions around the globe
  • Some modern Asians have features similar to those of ancient humans from China (the Homo Erectus)
  • Some Modern Australian Indigenous people show similar features to some ancient humans from Indonesia (the Homo Erectus)
  • Some modern humans in Europe, show similar features to ancient humans of Europe (the Homo Neanderthalensis)
  • All living people show little genetic diversity. This is assumed to e the result of continuous mixing of gense among regional populations

Out Of Africa Model

The Out of Africa Model suggest that modern humans originated in Africa within the last 200,00 years, from a single group of ancestors. Modern humans continued to evolve in Africa and spread to the Middle East by 100, 000 years ago. They did not breed with other groups of early humans and it is suggested that they had evolutionary advantages that allowed them to outlive or cause the extinction of other hominids. Modern humans only became well established 50, 000 years ago.

Evidence Against

The Multiregional Model has recently been discredited by many academics.

  • Fossils used as evidence for this model were in very poor condition
  • Lack of Fossil evidence from 100,000 and 30,000 BC – indicates a lack of any modern Chinese anatomical features from before 100,000 years ago
  • Anatomical features claimed to be evidence of the Multiregional model found in other fossils remains around the world
  • Genetic tests has shown that there is no relation between Neanderthals and Modern Humans.
  • It has been proven that Neanderthals did not contribute genetically to the the evolution of modern humans

Intorduction

100, 000 years ago, there were 3 diverse groups of Hominids. Homo Sapiens were the inhabitance of Africa and the Middle East, Homo Erectus inhabited Asia, and in Europe, the Homo Neanderthalensis. Aproxcimatley

70, 000 years later, there was only one group of hominids left. There are many theories on how this occured, but the two most favoured ar the Multiregional Model and the Out Of Africa Model.

Multiregional VS Out Of Africa

By Juliette Le Marquand

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