A new brain-imaging study suggests that dogs may be able to distinguish between certain negative human emotions just by looking at people’s faces.

School device use links with lower test scores and distractions abound. But reversing the entrenched pandemic pivot to screens will be hard.

Chemical analysis of Bronze Age iron objects indicate that Greek nobles may have indulged in signet rings made with precious metal from the sky.

In simulated conversations, social hierarchy can sway AI agents, making lower-status systems more likely to follow harmful requests.

Compared with standard flu shots, Moderna’s mFlusiva generates stronger, longer-lasting immunity and is more effective at preventing infection, data show.

A sweet tooth for sugars from fruits and honey may have helped fuel brain growth in our primate cousins and early human ancestors, a new study suggests.

Within minutes of impact, debris began heating Earth’s atmosphere. Fine dust trapped that heat, potentially killing the dinosaurs quickly.

Scientists have finally seen a long-predicted motion on the sun, and it may help explain explosive solar activity.

Researchers injected mice with a protein derived from frogs to save them from the same kind of shellfish poisoning that affects people.

Studies suggest AI can weaken learning when it replaces effort, but tools that guide rather than answer may help people keep their skills.

An emperor penguin colony in Antarctica saw a massive decline in chicks in 2025. The contours of a nearby grounded iceberg may have been the cause.

A compound made only by breeding queens keeps naked mole-rat colonies infertile and free of conflict.

Female pied flycatchers can tell whether a male is paired or not based on song differences. Mated males sing shorter songs and repeat syllables less.

A protein that is a hallmark of Alzheimer’s disease may also ID a brain condition associated with head trauma in contact sports, early findings suggest.

Getting more protein has been all the rage. In sedentary people, that advice could accelerate aging.

Researchers tracked a prescribed grassland fire using infrasound, sound waves pitched too low for people to hear.

Ancient mammals may have had an easier time moving across the Isthmus of Panama from north to south thanks to Mexico’s climate.

Dietary arginine reduces tumor formation and viral load in mice by boosting key immune proteins.

A canopy call, a partial photo and DNA revealed a new primate species — one that may already be at risk of extinction.

Women who received treatment for autoimmune diseases with CAR T cell therapy went on to have regular pregnancies and healthy babies.