Monthly Archives: July 2011


Polar Bears Have a Touch of the Irish

Posted 14 July 2011 by Anne-Marie Hodge

One cannot always judge a species by its cover. For example, grizzly and polar bears are in no danger of being mistaken for one another morphologically, and yet molecular studies have shown that the polar bear is actually nested within the brown* bear phylogenetic tree—meaning that polar bears are actually more recently diverged from some clades of brown bears than some browns are from one another (Waits et al. 2008, see figure from that paper below). Appearances can be deceiving.... Read more