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The small or microevolutionary changes occur by recombining existing genetic material within the group. As Gregor Mendel observed with his breeding studies on peas in the mid 1800's, there are natural limits to genetic change. A population of organisms can vary only so much. What causes macroevolutionary change?

hmmmm- whoda thunkit? Even Mendel ADMITTED the obvious (at least he was itnellectually honest enough to admit the FACT)- Making philisophical leaps from genetic limits, which are OBSERVED in nature, to genetic limit violating process that are NOT OBSERVED, is not science but rather faith. pointing to microevolutionary process such as genetic drift, recombination and other such microevolutionary events and extrapolating BEYOND the actual evidence is, once again, not science, but philisophical faith

In 1980 about 150 of the world's leading evolutionary theorists gathered at the University of Chicago for a conference entitled "Macroevolution." Their task: "to consider the mechanisms that underlie the origin of species" (Lewin, Science vol. 210, pp. 883-887). "The central question of the Chicago conference was whether the mechanisms underlying microevolution can be extrapolated to explain the phenomena of macroevolution . . . the answer can be given as a clear, No."

127 posted on 05/10/2009 9:31:13 AM PDT by CottShop (Scientific belief does not constitute scientific evidence, nor does it convey scientific knowledge)
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To: CottShop

The central question of the Chicago conference was whether the mechanisms underlying microevolution can be extrapolated to explain the phenomena of macroevolution . . . the answer can be given as a clear, No.”

Please allow me to show that quote in the correct context:

“The central question of the Chicago conference was whether the mechanisms underlying microevolution can be extrapolated to explain the phenomena of macroevolution. At the risk of doing violence to the positions of some of the people at the meeting, the answer can be given as a clear, No. What is not so clear, however, is whether microevolution is totally decoupled from macroevolution. The two can more probably be seen as a continuum with a notable overlap.” ~ Roger Lwein

http://shell.dim.com/~jambo/evolution/lewin.html

Looks like that is saying just the opposite of what your asserting.

Quote mining, I thought you were better than that.


131 posted on 05/10/2009 9:42:13 AM PDT by Ira_Louvin (Go tell them people lost in sin, They need not fear the works of men.)
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