answer:Without checking the link and without having read about it specifically, nontheless I’d venture it has to do a lot with evolution. Height, weight, strength in males, long hair and an hourglass figure in females – just a few examples of “beauty” pertain to the “stronger survive” theory, not? I do recall reading that people search out (not always wittingly) like-featured partners. Though we are but a blip on the evolutionary scale if you want to go back thousands even tens of thousands of years, I think that the so-called “desirable” features are also a product of this. But I’m just going on a hunch, There are others who will weigh in with more knowledge. GQ.