澳大利亚动物学家Neil R. Jordan及他的团队在博兹瓦纳做了一个的实验，总共62只牛，有一半屁股上画上了眼睛，观察为期10个星期。
结果是，屁股被画了眼睛的牛没有一只被狮子猎杀，而没有被画上眼睛的牛被狮子杀掉了3只。no painted cows were killed by lions, while three unpainted cows were.
团队还选了10只被画上眼睛的牛，戴上GPS项圈，结合狮子GPS项圈的数据，观察了3个月，结果所有狮子均放弃了猎杀这10头牛。when the lion realised it had been spotted, it gave up on the hunt.
团队还将进行规模更大的实验，来验证用此法保护牲畜和狮子的可行性。