Posted inArctic / Antarctic / Alpine, Extremeophiles and Extreme Environments, Genomics, Proteomics, Bioinformatics, Icy Worlds, Microbiology & Virology, Press Release An Update On Eukaryotic Viruses Revived From Ancient Permafrost by Keith CowingNovember 29, 2022November 29, 2022 One quarter of the Northern hemisphere is underlain by permanently frozen ground, referred to as permafrost.