For almost 50,000 years, viruses have been waiting, frozen in layers of permafrost that have thawed with the warming of Earth. A recent study of a section of Siberian permafrost by scientists from the French National Centre for Scientific Research found 13 viruses that have survived 48,500 years, according to Canada’s Global News. That’s older than the previous oldest virus found, which was 30,000 years old. One of the new finds has been dubbed a “zombie virus” by the New York Post. “One quarter of the Northern hemisphere is underlain by permanently frozen ground, referred to as permafrost. Due to...