Scientists resurrect 700-year-old viruses

(Phys.org) —Eric Delwart of the Blood Systems Research Institute in San Francisco and colleagues have found two 700-year-old viral sequences in frozen caribou dung in an arctic ice patch. The researchers isolated part of ...

More possible branches to the domain of life

(PhysOrg.com) -- When it comes to the current domain of life, we are familiar with the three branches: bacteria, archaea, and eukaryotes. However, Jonathan Eisen of UC Davis and his team have published possible evidence ...

Is evolution predictable?

We are surrounded by microorganisms that adapt in their struggle to survive. In plants and animals, such adaptations can take thousands of years; in microorganisms, they sometimes occur within weeks. To understand such rapid ...

Ancient origins of viruses discovered

Research published today in Nature has found that many of the viruses infecting us today have ancient evolutionary histories that date back to the first vertebrates and perhaps the first animals in existence.

Poxviruses defeat antiviral defenses by duplicating a gene

Scientists have discovered that poxviruses, which are responsible for smallpox and other diseases, can adapt to defeat different host antiviral defenses by quickly and temporarily producing multiple copies of a gene that ...

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