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Polar bears in East Greenland carry antibodies to the highly pathogenic H5 bird flu now spreading through wild birds worldwide, and no sample taken before 2024 carried antibodies to any influenza A…
A nationwide South Korean birth cohort, published Oct. 13, 2026, in PLOS Medicine, reports that children whose mothers were prescribed opioids during pregnancy were later admitted to the hospital 28%…
Somewhere on a seismogram the flat line starts to wobble. Deciding exactly where that wobble begins is the measurement: it fixes the moment a wave that set out from an earthquake on the far side of…
When heated, a magnet can gradually lose its magnetization until it disappears. This is an example of a continuous phase transition: the quantity used to distinguish between two states of matter…
A brain-imaging study has measured how much of LSD's main receptor target the drug occupies in living people, using PET and MRI scans recorded at the same time in seven healthy volunteers who were…
A honey bee stinger that has torn free from the bee works as a pump with two sliding pistons, and it keeps pushing venom into the skin after the bee itself has gone. Fiorella Ramirez-Esquivel and…
Dozens of routine laboratory tests change abruptly at a woman's last menstrual period rather than drifting over years, according to a reconstruction of 300 million test results from more than 1…
A malaria parasite spends its working life inside a red blood cell, eating the hemoglobin around it, and the meal is also its problem. Breaking hemoglobin down releases heme, the iron-bearing core…
Researchers at Columbia University and the University of Copenhagen have found a bacterial immune system that fights off viruses by building long stretches of repeated DNA, the same job telomerase…
A research team has sequenced the genome of Jonathan, a 194-year-old Aldabra giant tortoise, and reports that he carries unique gene variants in most aging pathways. The comparison is with two other…
A UK research team reports that in 771 adults hospitalized with COVID-19, the bacteria living in the mouth and the airways six months after discharge differed according to how severe the patients'…
Lower income was associated with a longer wait before seeing a doctor among women diagnosed with breast cancer at 40 or younger, according to an analysis published Oct. 12, 2026, in the journal…