Ancient "Fossil" Virus Shows Infection to Be Millions of Years Old

Viruses can be thought of as hyperspeed shape-shifters, organisms that can adapt quickly to overcome barriers to infection. But recent research has been finding ancient traces of many viruses in animal genomes, DNA insertions that have likely been there for much longer than the viruses were previously thought to have existed at all. [More] DNA - Virus - Genome - Biology - Fossil

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