The well known phrase cheeky monkey has some basis in fact, if a new study on the behavior of the primates is anything to go by.
원문출처 : https://www.cnn.com/travel/article/monkeys-barter-humans-scli-intl-scn/index.html
원문출처 : https://www.cnn.com/travel/article/monkeys-barter-humans-scli-intl-scn/index.html