Archive: https://archive.today/jOmkH From the post: >>Birds are perhaps the most colorful group of animals, bringing a splash of color to the natural world around us every day. Indeed, exclusively black and white birds—such as magpies—are in the minority. However, new research by a team from Princeton University in the United States has revealed a surprising trick in which birds use those boring black and white feathers to make their colors even more vivid.