The Stirling, Chester and Liverpool university researchers took photos of the men and women in more than 100 couples.

斯特灵大学、切斯特大学和利物浦大学的研究者们对100多对情侣夫妇拍了照片，并分别对每一个人的长相进行了评分。

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"It was clear the new fans were more affluent," says John Williams, director of the Sir Norman Chester Centre for Football Research at the University of Leicester.

“很显然新一代球迷的构成更加多样化，”莱斯特大学诺曼·切斯特爵士足球研究中心的主管约翰·威廉姆斯说。

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Commenting on the research, Dr Lynne Sneddon, a senior lecturer at the University of Chester and the University of Liverpool, said the research was "thorough" and had been "carried out well".

BBC: Further evidence crabs and other crustaceans feel pain

Chester Quarles, a professor at the University of Mississippi, says the Klan has transformed itself in recent years.

ECONOMIST: The Ku Klux Klan