Letters to the Editor is a periodic feature. We welcome all comments and will publish a selection. We edit for length and clarity and require full names. Trump Team’s Rhetoric Doesn’t Match Actions The recent KFF Health News article “Beyond Ivy League, RFK Jr.’s NIH Slashed Science Funding Across States That Backed Trump” (April 17) struck a nerve. […]

Wild chimpanzees alter the meaning of single calls when embedding them into diverse call combinations, mirroring linguistic operations in human language. Human language, however, allows an infinite generation of meaning by combining phonemes into words and words into sentences. This contrasts with the very few meaningful combinations reported in animals, leaving the mystery of human […]

Millions of kilometers of rivers around the world are carrying antibiotic pollution at levels high enough to promote drug resistance and harm aquatic life, a new study warns. The study estimated the scale of global river contamination from human antibiotics use. Researchers calculated that about 8,500 tons of antibiotics — nearly one-third of what people […]