is now publicly available to the scientific community that allows us to ask how and why microbial communities vary."[4] An Intestinal section from a gnotobiotic mouse model inoculated with selected bacterial species found in the human gut. Blue=Bacteroides WH2, green=Bacteroides thetaiotamicron, pink=Bacteroides vulgatus, yellow= Collinsella aerofaciens, red= Ruminococcus torques. (Image: Yuko