A team of scientists has made a startling discovery: evidence of viruses that have been around for over a billion years. This evidence was discovered in the form of viral DNA within the genomes of modern-day organisms. This means that viruses have likely been around since the beginning of life on Earth, and have evolved over time to become the viruses we know today. This finding is incredibly important, as it sheds new light on the evolution of viruses, and could have implications for understanding and managing the spread of viruses in the future.

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source: Phys.org