Bigger bodies and wider beaks help birds like the bare-throated bellbird belt out calls louder than a jackhammer, but why ...

The human brain is built to hear voices. Speaking connects us to other people — and ourselves. What do our voices reveal about ourselves?

One theory points to a long-awaited supersymmetric particle called a ‘higgsino.’ But that idea has some issues.

A dead star’s wreckage may be the birthplace of a new planet. The existence of second-generation planets was predicted ...

Microblazars — a miniature version of blazars — may be responsible for mysterious ultra-high-energy particles.

Voyagers migrated to islands sprinkled across a large area of the Pacific within about 500 years Polynesian voyagers settled islands across a vast expanse of the Pacific Ocean within about 500 years, ...

Scientists graded every river and stream in the contiguous United States, flagging specific repairs each one needs to support ...

A waterborne pathogen flourishes while toads shelter underground. The finding may help conservationists rethink how to ...

Avian flu, overfishing, and a super El Niño have decimated Peru’s largest colony of Humboldt penguins. Scientists are holding ...

A female humpback whale may have spent days with her stillborn calf. This rare sighting may suggest that baleen whales ...

The 10th century treatment called Bald’s eyesalve attacks microbes in multiple ways. Molecule mixtures from it may inspire ...

Uneven supernova explosions may explain the unusual mix of elements in Milky Way stars once thought to be evidence of ...