I'd just like to draw attention to a recent item in Science Daily. This will
definitely not be a surprise to some, but a recently published paper on the
genetic background of the British had some interesting findings. The news
item is at:
The original article is probably accessible in many places, but I looked at
a summary (and comments) here:
The accompanying map is pretty, I imagine, but not so informative for the
colour-blind. But the line through Pembroke is spectacularly obvious.