Polycentric Evolution
Weidenreich pioneered the Polycentric (multiregional) or Weidenreich Theory, which asserts that that the human races have evolved independently in the Old World from Homo erectus to Homo sapiens sapiens, while at the same time there was gene flow between the various populations.
A vocal proponent of the Weidenreich Theory was Carleton Coon, however Coon modified Weidenreich's Polycentric view of evolution, since he stressed far less on gene flow.
Read more about this topic: Franz Weidenreich
Famous quotes containing the word evolution:
“By contrast with history, evolution is an unconscious process. Another, and perhaps a better way of putting it would be to say that evolution is a natural process, history a human one.... Insofar as we treat man as a part of nature—for instance in a biological survey of evolution—we are precisely not treating him as a historical being. As a historically developing being, he is set over against nature, both as a knower and as a doer.”
—Owen Barfield (b. 1898)