Some interesting info and speculation on the IE Urheimat, and also evolution of cultures and languages in Eurasia can be found here.
http://freepages.genealogy.rootsweb....ow/lmusing.htm
One very interesting quote:"Ancient human cultural innovations diffused throughout the world rapidly. Although trying to relate these innovations to specific linguistic impulses (e.g., Cauco-Sinitic = Magdalenian tools; Austro-Asiatic = bronze smelting; Eurasiatic = domestication of wolf; Indo-European = domestication of horse) may be unreliable and oversimplified, the linguistic associations do provide tantalizing clues about some of the details."
Very interesting... see my wolf thread from a few weeks ago.
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