The Trump administration seeks to support a wider range of options, including natural gas buses, with the program’s remaining ...

In the 1960s and 70s, a group of chimpanzees astonished the world by learning sign language. Only two remain and one question still lingers—was it worth it?

If Maryland had a hidden treasure map, Swallow Falls State Park would be marked with a giant X in the western corner that ...

Tobacco hornworm caterpillars have no organs that resemble ears. Yet, scientists were able to figure out how they hear—and it ...

Every year, billions of birds undertake extraordinary migrations, crossing vast deserts and open seas with no place to stop, ...

A new study suggests features in the prehistoric creature's mouth helped it eat more efficiently, giving the species the energy needed to go airborne ...