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From a study published in Biological Conservation by scientists at Nanjing University. The article, titled "Where there are girls, there are cats," was published in February, then retracted without explanation.
>The growing population of outdoor, free-ranging cats poses an increasingly serious threat to biodiversity. In this study, we provide robust estimates of free-ranging cat density at thirty universities in Nanjing, Jiangsu province, China. We found that the population density of free-ranging cats is linearly related to the proportion of female students at a university. An online questionnaire confirmed that human females were more concerned about the living conditions of free-ranging cats than were human males in China. A socialization test on twenty-seven free-ranging cats suggests that cats may react more sociably to human females, an important factor to consider in cat population management.