http://news.uchicago.edu/news.php?asset_id=1710 http://www.washingtonpost.com/wp-dyn/content/article/2009/09/17/AR2009091702573.html?hpid=topnews http://www.nytimes.com/2009/09/18/science/18dinosaur.html?_r=1&hp Guy Leahy