Viking mice marauders swept across northern Europe | Science News | Scoop.it
From www.newscientist.com - March 20, 2012 6:24 AM

Just as Vikings pillaged their way from Norway to Greenland and Iceland 1000 years ago, another group of furry raiders appears to have made a similar trek: common house mice. A new analysis of ancient and modern mouse DNA suggests that the mice in Iceland and Greenland came from Norway.