Each week, three science bloggers discuss a peer-reviewed article that bloggers have written up on ResearchBlogging.org. Your discussants are Dave Munger, Editor of ResearchBlogging.org and blogger at DailyMonthly.com; Razib Khan, blogger at Gene Expression (http://blogs.discovermagazine.com/gnxp/); and Kevin Zelnio of Duke University, and blogger at DeepSeaNews.com