Monday, December 10, 2007

St. Bernard Study Shows Human-directed Evolution At Work

http://www.sciencedaily.com/releases/2007/10/071024083652.htm

The article talks about the evolution of a St Bernard's skull. This reason is best described in selection breeding. Breeders choose the dogs that best suit their own standards. The breeders may have also applied selection.

How is natural selection or evolution illustrated in this article? By the changing of a St Bernard's skull over 120 years.
How does this support Darwin original findings? It goes right along with it.
List three things you learned from this article in your own words. That humans could cause evolution in different species. A species could change in such a short time. That the St Bernard was European.
What impact would the absence of this organism have on the ecosystem? This animals save lives and many would die.

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