http://us.cyworld.com/bitt/photos/view?viewtype=all&postid=85&folderid=12
Emperor Penguins are seen in an undated photograph from an exhibit titled "Irreplaceable: Wildlife in a Warming World," recently shown at the Peerless building in downtown Providence, Rhode Island. Warmer temperatures in Antarctica are causing declines in krill, one of the penguin's main food source. (Kevin Schaffer)