Exposed Rocky Habitat (IMAGE) Proceedings of the National Academy of Sciences Caption Exposed rocky habitat where terrestrial life is found along the margins of the Shackleton Glacier Credit Image credit: Ian D. Hogg Usage Restrictions None 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.