精选优质文档-倾情为你奉上20172020年上海高考真题汇编概要写作2020年秋考Are people unique?It is human beings pride that we are the only species on the Planet that can speak and think. However, recent research casts doubt on that common belief. Zuberbuhler, a psychologist at St. Andrews University, and his colleagues recorded thousands of calls made by Diana monkeys and noticed that the monkeys adapted their calls to change the meaning to warn one another about different situations. For example, they made a k
