Archaeologists in Kenya have discovered the remains of some of the world's oldest people. But bones here can only tell you so much about these early humans, says rock art expert David Coulson.
원문출처 : http://www.cnn.com/2016/07/19/africa/rock-art-activism-david-coulson/index.html
원문출처 : http://www.cnn.com/2016/07/19/africa/rock-art-activism-david-coulson/index.html