Study: Polar Bears Are of Irish Descent

Nearly all of us can claim some measure of Irish heritage, and not only on St. Paddy's Day. Recall our surprise when President Obama celebrated his Irish roots in a trip to the Emerald Isle back in May?

Well, it turns out that Irish immigrants have covered the entire globe, including its northern poles. A fascinating new study of polar bear genetics indicates that the great bears of the north are descended from the same great-grandmother, an Irish brown bear.

The research is detailed in the most recent issue of Current Biology and reported this week by [Science News](http://www.sciencenews.org/view/generic/id/332192/title/DNA_hints_at_polar_bears'_Irish_ancestry___