Stroke survivors whose undamaged brain half showed an older brain age had worse language problems and tended to gain less from therapy.

Animals experience the world in surprising ways humans cannot, a difference at the heart of this year’s World Animal Day theme.

Maui adults carrying the most toxic metals were more likely to have abnormal breathing tests, and the pattern extended beyond Lahaina.

Fitbit data on 5,515 kids linked more daily steps to better mental health a year later, with no plateau up to 12,000 or more ...

Ancient Roman bookshops reveal how books were written, copied, sold and corrected, tracing the evolution of writing from clay ...

New scans of a 345-million-year-old fossil reveal that Westlothiana, once considered an early reptile, belonged to a far more ...

Ants branched into thousands of new species after the dinosaurs died, and a new study links that burst to jumping genes in ...

A droplet of salty water full of DNA strands added, multiplied and divided numbers by settling into the right answer as it ...

Swedish students understood food’s climate impact, but taste, fullness, and familiarity mattered more when judging their ...

Ancient DNA from 135 people in far western China shows Yellow River farmers and northern herders mixed long before the Silk Road. The story of East meeting West usually starts with the Silk Road and ...

In the U.S., greater exposure to drought and extreme heat often overlaps with poverty, older housing, and limited health insurance.

Fluorine from forever chemicals in firefighting foam comes back as silver fluoride, a reagent drug makers already buy by the bottle.