Distal Colon of a Mouse (image) Biophysical Society Share Print E-Mail Caption This distal colon of a mouse shows the mouse epithelial nuclei (blue), the mucus separating the epithelium and digesta (green), and a piece of food fiber (large structure in red). Bacteria are labeled in red and magenta. Credit Carolina Tropini/Stanford University Usage Restrictions This image may be used only with appropriate credit. Share Print E-Mail Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.