Peek inside the human genome and, among the 20,000 or so genes that serve as building blocks of life, you'll also find flecks of DNA left behind by viruses that infected primate ancestors tens of millions of years ago.
Study shows ancient viruses fuel modern-day cancers retrieved 17 July 2024 from https://phys.org/news/2024-07-ancient-viruses-fuel-modern-day.html
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