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WikiPedia: Người http://www.britannica.com/EBchecked/topic/1350865 http://www.freerepublic.com/focus/f-news/966532/po... http://news.ft.com/cms/s/43445728-1a44-11da-b279-0... http://www.sciencedirect.com/science/article/B6WJS... http://www.bgsu.edu/departments/chem/faculty/leont... http://www.bucknell.edu/msw3/browse.asp?id=1210079... http://cogweb.ucla.edu/ep/Templeton_02.html http://www.anth.ucsb.edu/projects/human/# http://www.ulm.edu/~palmer/ConsciousnessandtheSymb... http://animaldiversity.ummz.umich.edu/site/account...