Cryoconite Holes (IMAGE) University of Innsbruck Caption The viruses studied by the research team originate in very unusual habitats on the surface of glaciers and ice sheets, called cryoconite holes. Credit Gary Barker Usage Restrictions Use only when reporting on research, credit as mentioned. 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.