This article supports a sad truth of what we've always known; Looks count. The further back in history we look the more severe are the examples of appearance discrimination. There was a time when looking different might mean death. And not for color of skin, but for color of eyes, hair, facial features, body characteristics that did not match what was considered acceptable.
Over time fortunately this part of our society has, for the most part changed. Yet the instinct appears to live on. I am glad I believe all of my children and grandchildren are the most beautiful human beings on earth.