News

Health & Medicine

Patch guards against Montezuma’s revenge

A patch worn on the skin delivers a vaccine against a form of Escherichia coli that causes traveler's diarrhea.

Health & Medicine

Additives may make youngsters hyper

Common food colorings and the preservative sodium benzoate have the potential to foster hyperactivity and inattentiveness in children, a new study finds.

Chemistry

Hydrogen makers

A new bioreactor produces hydrogen hundreds of times as fast as previous prototypes.

Anthropology

Ancient-ape remains discovered in Kenya

Newly unearthed fossils of a 9.8-million-year-old ape in eastern Africa come from a creature that may have evolved into a common ancestor of African apes and humans.

Health & Medicine

Biohazard: Smoking before or after pregnancy may harm daughters’ fertility

Smoking before pregnancy or during breastfeeding might impair the female offspring's fertility, a study in mice shows.

Physics

Einstein Unruffled: Relativity passes stringent new tests

The moon's orbit and the dilated time of speeding atoms give new meaning to 'Einstein was right.'

Health & Medicine

Wrong Way: HIV vaccine hinders immunity in mice

An HIV vaccine hurts, not helps, the immune systems of mice, say scientists.

Materials Science

Snappy Transition: Venus flytrap inspires new materials

Inspired by the quick-shut action of the Venus flytrap, researchers have designed a patterned surface with microscale hills that can rapidly flip to form valleys.

Plants

It Takes a Village: Tweaking neighbors reroutes evolution

The other residents of a plant's neighborhood can make a big difference in whether evolutionary forces favor or punish a plant's trait.

Paleontology

A toothy smile

Nigersaurus boasted more than 500 teeth, arranged in rows across its mouth.