Reviews The Great White Bear: A Natural and Unnatural History of the Polar Bear by Kieran Mulvaney Share this:EmailFacebookTwitterPinterestPocketRedditPrint By Science News January 28, 2011 at 1:13 pm Starting with the fact that polar bears have black skin, this book offers surprises and up-to-date information about the Arctic’s iconic top predator. Houghton Mifflin Harcourt, 2011, 251 p., $26.