Avoid pregnancy and miss Mr. Right?

New genetic research and mapping is providing a welter of information about genetic groupings and mappings within Europe.

A few tidbits:
1. The research indicates and supports theories of three major prehistoric migrations into Europe
2. The Italians have a bit more genetic isolation than much of Europe, with the barrier of the Alps presumed why;
3. The Finns have even more isolation, with the explanation they started from a small, isolated core population that ballooned; speaking a non-Indo-European language may have helped, of course.