Enlarge this image Macaques use stones as hammers to smash open food items like shellfish and nuts. Lydia V. Luncz hide caption…

Nell Greenfieldboyce
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When is it OK to make germs worse in a lab? It’s a more relevant question than ever
by Nell Greenfieldboyce January 27, 2023Enlarge this image This image shows purified particles of mpox virus, formerly called monkeypox. Viruses like these can be genetically altered in…
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Why scientists dug up the father of genetics, Gregor Mendel, and analyzed his DNA
by Nell Greenfieldboyce December 30, 2022Enlarge this image Gregor Johann Mendel (1822 – 1884) the priest and botanist whose work laid the foundation of the study of…
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A new kind of blood test can screen for many cancers — as some pregnant people learn
by Nell Greenfieldboyce December 23, 2022Enlarge this image When women get a blood test during pregnancy that looks at free-floating DNA, they expect it to tell about…
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Law requires former research chimps to be retired at a federal sanctuary, court says
by Nell Greenfieldboyce December 15, 2022Enlarge this image A chimp walks at Chimp Haven in Louisiana. A federal judge has ruled that the NIH violated the law…
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Why this key chance to getting permanent birth control is often missed
by Nell Greenfieldboyce July 12, 2022Enlarge this image Maria Fabrizio for NPR Maria Fabrizio for NPR In the wake of the U.S. Supreme Court’s historic decision to…
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Enlarge this image A California two-spot octopus extends a sucker-lined arm from its den. In 2015, this was the first octopus species…
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Scientists Restore Some Function In The Brains Of Dead Pigs
by Nell Greenfieldboyce April 17, 2019Enlarge this image The image on the left shows the brains of pigs that were untreated for 10 hours after death, with…