'Game-changer' in evolution, South African bones. “Game-changer”在進化過程中，南非的骨頭。

'Game-changer' in evolution from S. African bones | The Associated Press | News | Washington Examiner
http://washingtonexaminer.com/news/2011/09/game-changer-evolution-s-african-bones
'Game-changer' in evolution from South African bones | TBO.com
http://www2.tbo.com/news/scitech/2011/sep/08/game-changer-in-evolution-from-south-african-bones-ar-256139/
BBC中文網 - 科技健康 - 科學家稱骨骼化石顯示人類進化證據
http://www.bbc.co.uk/zhongwen/trad/science/2011/09/110909_human_fossils_missing_link.shtml