Reasons to Believe

Ancient DNA shows interbreeding between Homo sapiens and Neanderthal

Washingtonpost.com, "Ancient DNA shows interbreeding between Homo sapiens and Neanderthal," by David Brown, May 7, 2010 ; http://www.washingtonpost.com/wp-dyn/content/article/2010/05/06/AR2010050604423.html?wprss=rss_technology