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The latest in science and policy

Lawsuit prompted agency to take a second look at paraquat’s safety

A mutation reveals chemical signals that help wheat plants attract beneficial fungi to their roots

DeepSeek’s open-source answer to ChatGPT is “a highly impressive display of research,” expert says

2000-year-old graves suggest women wielded as much—and sometimes more—power than men in some Celtic tribes

“It’s really this whole change from letting the animals’ immune system do the work to now being able to do it very intentionally on the computer.”

Resignation of Lia Merminga at Fermilab leaves scientists puzzled

The biomedical research agency’s 17th director is proud of her initiatives amid tough political landscape

The extinction of moa may have left native fungi with no way to spread their spores

A more scientific definition of obesity should guide decisions about weight loss treatment, researchers argue

Result could be first success at stitching a curative gene into a chromosome’s “safe harbor,” reducing cancer and other risks

The behavior—also seen in humans and other social animals—is a key to bonding

Norovirus, which causes explosive diarrhea and vomiting, may be on the rise because of an antibody-dodging variant and post–COVID-19 socializing

Republicans in Congress had raised concerns about work with Shanghai Jiao Tong University

Insects use “crazy turning” to dry off after a cooling dip in water

Inked skin from the Chancay culture shows tattooing rivaled other forms of art in complexity

Historic deal will boost researcher pay—if Congress provides funding

Workers at Jet Propulsion Laboratory and Mount Wilson Observatory made preparations for wildfires

The Biden administration had aimed to create a nationwide approach to protecting the most mature forests from fire, disease, and logging

El Niño and declining reflectivity brought a warming surge