Biology

Analysis of two decades' worth of antibiotic resistance shows antibiotic use is not the only driver of superbugs ( phys.org )

For the first time, researchers have analyzed the impact of antibiotic use on the rise of treatment-resistant bacteria over the last 20 years in the UK and Norway. They show that while the increase in drug use has amplified the spread of superbugs, it is not the only driver....

Evolution: Fast or Slow? Lizards Help Resolve a Paradox. | Quanta Magazine ( www.quantamagazine.org )

To Hendry, the paradox of stasis was never a paradox at all. The issue, he said, was that biologists assumed that long-term stasis was the result of short-term stability. Throw out that assumption, and the paradox disappears. “The paradox is illusory,” he said. “Evolutionary biologists like to come up with things and call...

Scientists create artificial DNA that can be transcribed by a natural enzyme ( phys.org )

The genetic alphabet contains just four letters, referring to the four nucleotides, the biochemical building blocks that comprise all DNA. Scientists have long wondered whether it's possible to add more letters to this alphabet by creating brand-new nucleotides in the lab, but the utility of this innovation depends on whether or...

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