Actually, the first article I posted talks about possible reason of the phenomenon. Sucks when you the guy posting the article himself only takes a look at the statistical stuff

-"Ironically, the separation of church and state laid down in the US constitution contributes to the tension. In Catholic schools, both evolution and the strict biblical version of human beginnings can be taught. A court ban on teaching creationism in public schools, however, means pupils can only be taught evolution, which angers fundamentalists, and triggers local battles over evolution.

These battles can take place because the US lacks a national curriculum of the sort common in European countries."-

I'm not sure about what "national curriculum" they are talking there - I guess they mean the biology classes, which is where I learned about evolution. We have religious classes as a part of the national curriculum (however, it's not mandatory. You are sort of subscribed to them in the beginning but can opt out at an time without any reason) - I remember these classes as being very open for discussions and critical thoughts on all sorts of stuff, but yet we never even touched the topic of creationism.

To trace it back to different approaches to education does seem reasonable to me.

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