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Roughly 1 in 10 infants were born prematurely in the U.S. in 2018, according to the Centers for Disease Control and Prevention. The drug Makena is widely prescribed to women at high risk of going into labor early, though the latest research suggests the medicine doesn't work. Luis Davilla/Getty Images hide caption

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Luis Davilla/Getty Images

H5N1 bird flu virus is the sort of virus under discussion this week in Bethesda, Md. How animal viruses can acquire the ability to jump into humans and quickly move from person to person is exactly the question that some researchers are trying to answer by manipulating pathogens in the lab. SPL/Dr. Klaus Boller/Science Source hide caption

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SPL/Dr. Klaus Boller/Science Source

How Much Should The Public Be Told About Research Into Risky Viruses?

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The mouse on the right has been engineered to have four times the muscle mass of a normal lab mouse. Se-Jin Lee/PLOS One hide caption

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Se-Jin Lee/PLOS One

Why are some warnings heard, while others are ignored? Angela Hsieh hide caption

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Angela Hsieh

Generics may not have the same cost-lowering power for specialty medicines, such as multiple sclerosis drugs, researchers find. That's true especially when other brand-name drugs are approved to treat a given disease before the first generic is approved. Gary Waters/Ikon Images/Getty Images hide caption

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Gary Waters/Ikon Images/Getty Images

A team of Stanford University researchers designed the PigeonBot. Lentink Lab/Stanford University hide caption

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Lentink Lab/Stanford University

'PigeonBot' Brings Robots Closer To Birdlike Flight

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The mouse on the right has been engineered to have four times the muscle mass of a normal lab mouse. Se-Jin Lee/PLOS One hide caption

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Se-Jin Lee/PLOS One

Scientists Sent Mighty Mice To Space To Improve Treatments Back On Earth

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A light micrograph of a primitive human embryo, composed of four cells, following the initial mitotic divisions that ultimately transform a single-cell organism into one composed of millions of cells. Science Photo Libra/Getty Images hide caption

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Science Photo Libra/Getty Images

Embryo Research To Reduce Need For In Vitro Fertilization Raises Ethical Concerns

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Recent research has explored "helping" behavior in species ranging from nonhuman primates to rats and bats. To see whether intelligent birds might help out a feathered pal, scientists did an experiment using African grey parrots like these. Henry Lok/EyeEm/Getty Images hide caption

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Henry Lok/EyeEm/Getty Images

Polly Share A Cracker? Parrots Can Practice Acts Of Kindness, Study Finds

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Scott Olson/Getty Images

from local story: "Sickle cell pain has a mind of its own," said Anesha Barnes, who's had the disease since she was a baby. She says the longer she stays in a pain crisis, the harder it is to break out of it. Johnathon Kelso hide caption

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Johnathon Kelso

Effort To Control Opioids In An ER Leaves Some Sickle Cell Patients In Pain

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Victoria Gray, who has sickle cell disease, volunteered for one of the most anticipated medical experiments in decades: the first attempt to use the gene-editing technique CRISPR to treat a genetic disorder in the United States. Meredith Rizzo/NPR hide caption

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Meredith Rizzo/NPR

A Young Mississippi Woman's Journey Through A Pioneering Gene-Editing Experiment

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Joey Clawson at one of his Christmas tree stands on the first day of harvest. He grows about 95,000 firs on his operation. Irina Zhorov for WHYY hide caption

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Irina Zhorov for WHYY

A Christmas Tree Thrives On Farms, Struggles In The Wild

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A horn player (left) in this detail from a 1694 altar carving by Francesco Antonio d'Alberto in Piedmont, Italy, clearly has a swollen neck that signifies goiter, medical historians say. The thyroid condition was a sign of poverty in those days. Renzo Dionigi hide caption

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Renzo Dionigi

Why Certain Poor Shepherds In Nativity Scenes Have Huge, Misshapen Throats

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The CDC is still trying to understand the mechanism by which Vitamin E acetate, an additive in some vapes, injures lung tissue. It may interfere with a natural fluid in the lung called surfactant, which helps make lung tissue stretchy. Or a byproduct may be a toxic chemical. Jelacic Valentina/EyeEm/Getty Images hide caption

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Jelacic Valentina/EyeEm/Getty Images

A new study suggests that one service already in place in many food deserts could help make it easier to access fresh, healthy food: online grocery delivery. The finding lends support to expanding a pilot program that lets people use food stamp benefits to pay for those groceries. svetikd/Getty Images hide caption

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svetikd/Getty Images

A piece of birch pitch from Syltholm, in southern Denmark, has proved to be a remarkable source of ancient human DNA. Theis Jensen/Nature Communications hide caption

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Theis Jensen/Nature Communications

What Ancient 'Chewing Gum' Can Tell Us About Life 5,700 Years Ago

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