Octopus Spring, Yellowstone (IMAGE) Carnegie Institution for Science Caption A microbial mat community in Octopus Spring, Yellowstone National Park, is shown courtesy of Michelle Davison. Credit Michelle Davison Usage Restrictions With 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.