A team of researchers in Germany have revived algae cells found buried at the bottom of the Baltic Sea, where they laid dormant for more than 7,000 years. For millenia, the cells, imprisoned under layers of sediment, were deprived of oxygen or light. But once revived, they showed full viability, the researchers report in a study published in The ISME Journal, firing back up their oxygen production and multiplying again like it was no big deal.  According to the team, this is the oldest known organism retrieved from aquatic sediments to be revived from dormancy, potentially providing a window into […]