An analysis of tooth enamel from animals that roamed the western United States about 150 million years ago, including (from left) Allosaurus, Apatosaurus, a herd of Diplodocus and two Camptosaurus, ...

Sea silk, once spun from endangered clams, may make a comeback — thanks to discarded fibers from a farmed species. The find could sustainably revive a fading art.

In two studies of mice, a molecule called leukotriene helped trigger food-induced anaphylaxis. A drug approved for asthma — zileuton — diminished it.

The invasive spotted lanternfly has spread to 17 states and can threaten vineyards. But bats, fungi, dogs and even trees may help control them.

Flu viruses often enter the body through mucous tissue in the nose. Researchers are developing new ways to protect such areas.

Researchers reconstructed a roughly 2,000-year-old woman’s tattoos, from prowling tigers to a fantastical griffinlike creature.

Probiotics containing Lactobacillus gasseri Lg-36 prevented C. difficile infections in mice, but L. acidophilus probiotics made infection more likely.

Aerosols, small particles in the atmosphere like salt and dust, may offset a third of human-caused climate warming, though their influence is fading.

Defense lawyers have called shaken baby syndrome, or abusive head trauma, junk science. But doctors say shaking a baby is dangerous.

A mysterious disease has been turning sea stars into goo since 2013. Now, there’s a leading suspect behind the killings — a bacterium called Vibrio pectenicida, researchers report August 4 in Nature ...

Extremely aged organs came with higher odds of disease for that organ, the team found. For example, an extremely aged heart predicted a higher risk of atrial fibrillation and heart failure, and ...

Golden apple snails can regrow full, functional eyes. Studying their genes may reveal how to repair human eye injuries.