Understanding the differences between bacteria and viruses is crucial for recognizing how these microorganisms impact our health. While both are microscopic and can cause infections, they differ ...

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The viruses that kill bacteria may be our best bet against antibiotic resistance — if we can understand how they win. When you purchase through links on our site, we may earn an affiliate commission.

Scientists generally agree that eukaryotes, the domain of life whose cells contain nuclei and that includes almost all multicellular organisms, originated from a process involving the symbiotic union ...

Scientists estimate that the earliest biological entities began to appear on Earth more than 4 billion years ago. "There was a sort of primordial soup from which certain organic molecules were formed.

Penn State scientists uncovered an ancient bacterial defense where dormant viral DNA helps bacteria fight new viral threats. The enzyme PinQ flips bacterial genes to create protective proteins that ...

The idea that a single-celled bacterium can defend itself against viruses in a similar way as the 1.8-trillion-cell human immune system is still “mind-blowing” for molecular biologist Joshua W. Modell ...