Cuttlefish Microbiome (Esophogus) (IMAGE) Marine Biological Laboratory Caption A layer of bacteria in an unusual place, the esophagus of a cuttlefish. Bacteria (red) are in a layer of mucus (green) lining the inside of the esophagus. Cuttlefish cell nuclei are shown in blue. Credit Tabita Ramírez-Puebla and Jessica Mark Welch Usage Restrictions Please use with proper credit License Licensed content 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.