More than 5,000 years after his death, Ötzi the Iceman is still hosting a remarkable mix of ancient and modern microorganisms ...

Ancient seafloor sediments have revealed a surprising twist in how the Atlantic’s massive circulation system works. During a ...

Glyphosate was long thought to be safe for honeybees because they lack the enzyme the chemical targets in weeds. However, ...

Genetic changes may set off a chain reaction that causes the spine’s natural shock absorbers to harden and deteriorate.

A supermassive black hole has been found lurking about 30,000 light-years from the center of its galaxy—the first dormant ...

A new hollow nanoreactor mimics living cells to make hydrogen peroxide more efficiently using visible light. Its ...

Millions of sperm do not always compete alone—some species send them into action as coordinated teams. A sweeping ...

A landmark study of nearly 4,000 babies found that acetaminophen and ibuprofen were equally safe during infancy. Neither medicine was linked to eczema or bronchiolitis, and no serious side effects ...

A study funded by the National Institutes of Health (NIH) has uncovered a major shift in the immune environment of the hippocampus, the part of the brain that plays a central role in learning and ...

An exceptionally preserved snake fossil from Brazil reveals that early snakes were far more diverse than scientists once ...

A simple change in posture may subtly affect how people feel and make decisions. Participants who sat upright reported greater feelings of pride and took more successful risks in a virtual balloon ...

A group of brain cells called orexin neurons appears to help us keep working when reaching a reward becomes increasingly ...