On Feb. 8, Colette Delawalla, a graduate student in psychology at Emory University, nervously announced to the online world that she was planning a national protest in defense of science. “I’ve never done this before, but we gotta be the change we want to see in the world,” she wrote in a post on Bluesky, a social media platform. A …
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Women with Postpartum Depression Experienced Brain Changes During Pregnancy, Study Finds
Postpartum depression affects about one in every seven women who give birth, but little is known about what happens in the brains of pregnant women who experience it. A new study begins to shed some light. Researchers scanned the brains of dozens of women in the weeks before and after childbirth and found that two brain areas involved in the …
Read More »Trove of Ancient Axes Shows Early Humans Made Tools From Bones
Humans, unlike most other species, have a knack for making tools. Six million years ago, our apelike ancestors probably smashed nuts with rocks or caught termites with sticks. Around 3.3 million years ago, hominins began using flakes of stone, perhaps to cut flesh from carcasses or chop plants. And by 1.5 million years ago, they were using more sophisticated tools …
Read More »Measles Outbreak Continues to Spread in West Texas
A measles outbreak that has spread over a swath of West Texas, killing one child, shows no signs of slowing, according to data announced on Tuesday by state health officials. The Texas Department of Health reported that since late January, nearly 160 people have contracted measles — 20 more cases than reported on Friday — and 22 have been hospitalized. …
Read More »What a Crab Sees Before It Gets Eaten by a Cuttlefish
In May 2023, Matteo Santon was filming cuttlefish in the shallow-water reefs around Indonesia. A marine visual ecologist at Bristol University in England, he planned to document the predators’ approach to hunting from the perspective of the prey — essentially, to see what it’s like to be the crab. He was hoping to see a particular hypnotic camouflage display cuttlefish …
Read More »U.S.A.I.D. Memos Detail Human Costs of Cuts to Foreign Aid
The Trump administration’s decision to withdraw foreign aid and dismantle the U.S. Agency for International Development is likely to cause enormous human suffering, according to estimates by the agency itself. Among them: up to 18 million additional cases of malaria per year, and as many as 166,000 additional deaths; 200,000 children paralyzed with polio annually, and hundreds of millions of …
Read More »Federal Officials Underplaying Measles Vaccination, Experts Say
In a first test of the Trump administration’s ability to respond to an infectious disease emergency, its top health official has shied away from one of the government’s most important tools, experts said on Sunday: loudly and directly encouraging parents to get their children vaccinated. Robert F. Kennedy Jr., the health secretary, was widely criticized as minimizing the measles outbreak …
Read More »Vesuvius Turned One Victim’s Brain to Glass
Five years ago Italian researchers published a study on the eruption of Mount Vesuvius in A.D. 79. that detailed how one victim of the blast, a male presumed to be in his mid 20s, had been found nearby in the seaside settlement of Herculaneum. He was lying facedown and buried by ash on a wooden bed in the College of …
Read More »Vesuvius Erupted, but When Exactly?
During the first 17 hours, Dr. Scarpati said, Pompeii was blanketed with pumice lapilli from the column, which fluctuated like a giant fountain through 12 distinct pulses. At 2 p.m., the volcano began to spew pumice mixed with gas. Over the next four hours, roofs began to cave in under the weight of the pumice lapilli, causing some supporting walls …
Read More »How Fungi Move Among Us
Mycorrhizal fungi are the supply chains of the soil. With filaments thinner than hair, they shuttle vital nutrients to plants and tree roots. In return, the fungi receive carbon to grow their networks. In this way, 13 billion tons of atmospheric carbon dioxide — one-third of fossil-fuel emissions worldwide — enter the soil each year. These fungi cannot live on …
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