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Long before cooking was common, early humans needed extra energy to fuel bigger bodies and brains. Scientists say simple stone cutting tools likely allowed small-toothed meat eaters to thrive.

CRISPR, the breakthrough method for editing genes, has the potential to improve our lives. But one of its inventors warns us scientists may be tempted to change life itself.

President Trump's impeachment trial will test Collins' reputation for centrism and independence. She is a potential swing vote and is facing a difficult reelection.

NPR's Lulu Garcia-Navarro asks Rep. Raja Krishnamoorthi, D-Ill., about the next steps in the impeachment inquiry into President Trump.

Polls taken 18 months before an election are not predictive, but they have sent signals that proved helpful when heeded by presidents in the past.

In field that contains several high-profile women presidential candidates, the Democratic men who are running for president are facing questions about gender roles on the 2020 campaign trail.

A lawsuit filed in California alleges a new type of workplace discrimination based on caste. Indians in Silicon Valley say this ancient social hierarchy has followed them to the U.S..

NPR's Ailsa Chang speaks with State Fire Marshal H. "Butch" Browning about search-and-rescue efforts after Hurricane Laura hit Louisiana on Thursday morning.

Kamala Harris has called her time at Howard University "one of the most important aspects of my life." Much of that time was spent studying economics.

The victory, projected by The Associated Press, comes in another close race with Pete Buttigieg, the former mayor of South Bend, Ind. The two had a virtual tie in the still unsettled Iowa caucuses.