虎牙古阿扎黑色比基尼_蘑菇视频成年在线观看_妖禁by潮声渐喧113章

        How easy is it to group people into “races” based on appearance? What about using individual traits? Does everybody classify the same way?

        Try your hand at "sorting" individuals and see if it matches how people think of themselves. Or explore how we might sort people by physical traits.



        Activities require the Flash 6 plugin.

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