New study of 7-million-year-old fossils from Chad proves Sahelanthropus tchadensis walked upright while still climbing trees.

Scientists may have cracked the case of whether a seven-million-year-old fossil could walk upright. A new study found strong ...

Naltrexone has long been used to treat alcohol use disorder. Now it’s gaining attention as a tool for people who want to cut ...

Gone are the days of dusty boxes in police evidence rooms. With every crime committed nowadays comes hours — sometimes ...

It is hard to see how this can be anything other than a ‘use of force’ under article 2(4) of the United Nations Charter.

Chairman Dan Caine’s account of Venezuelan President Nicolás Maduro’s arrest raises profound legal, geopolitical and credibility questions that extend well beyond the tactical success described by U.S ...

It was America's fifth president who formulated a foreign policy approach that has shaped American strategy for two centuries ...

In the arid landscapes of the Afar region in Ethiopia, a series of bones dating back 3.4 million years could shake up what we ...

As the Trump administration tries to rewrite the history of the Jan. 6 attack on the U.S. Capitol, a new NPR investigative project is preserving evidence of the crimes committed that day.

The Oklahoma Court of Criminal Appeals has upheld using probabilistic genotyping software program for DNA evidence in a ...