Where we come from? human origin of dispute (map)

The origins of mankind, there are two concepts: the origins of the human family and the origins of modern people. For one section of the common ancestor of about 700 years ago to 500 million years ago roots in Africa, the academic community is at present no less controversial.

For that the origin of modern humans exist two hypotheses, many scientists supports the "origin" in Africa, Africa is the home of modern man; a small number of scientists are supporting "in evolutionary said," that is, think that modern man is at the origin of the Eurasian non-respective.

Modern African origins of the view that the ancestors of modern people dates back to about 15 million years ago of a woman in Africa "Eve". The original Asian continent were all cold glaciers, natural elimination, the descendants of the "Eve" started by the African continent to the other continents of the world, migration within 5-6 years ago came to China, accrue multiply, and at the same time in all parts of the evolvement of the cave man is truly modern sense of the human race.

In 1987, the United States scientists Wallace and Wilson were led by two laboratory detection of mitochondrial DNA in the genetic material found that people today can be traced back to their ancestors to about 15 million years ago lived in Africa for a woman. After the start of the modern human part from the African continent to the world the other continents migration and at the same time the evolution of mankind by burrowing into real modern sense of the human race. This point of view this as an international academic argument of "focus".

On 7 March 2005 on Science magazine, published articles, Cambridge University's three researchers to modern humans from the African continent to the world the other continents migration of geographical location and the corresponding population study of gene analysis. Find the distance from Ethiopia (African and Eastern countries) and the Ethiopian room showed very little genetic variability. Modern humans began from the African continent to the world the other continents migration route, gene diversity characteristic manifestations not obvious, not a large number of gene disruption. This inference, which further proves that modern humans originated in Africa "said."

For "out of Africa," said one of the two key issues are migratory route. Two independent research team through the human mitochondrial DNA studies have found that the ancestors of modern humans as early as possible along the Indian Ocean coastline "out of Africa", and then move to the world, and its movement speed far beyond earlier estimates. The traditional doctrine that modern human ancestors might be moved to the Middle East and Central Asia region, and then to other parts of Asia and Europe, etc.

Another key issue is out of Africa. At first, scientists reasoned time in about 10 years ago, but after scientists a new round of analysis determined that the fossil is about the history of the Wannian 19.5 than it previously presumed earlier 6.5 million years. Genetic studies have speculated that Homo (i.e. people) should come from approximately 20 million years ago, but this new study results coincided with genetic research results.

Scientists believe that the revision of time so that the "modern humans originated in Africa" theory is more persuasive. Date of early modern ahead of time so that these people have more time to develop their cultural property, so they spread from the African continent to Asia and Europe.