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The old way to think about your dog's "human age" — the age in actual years times seven — is wrong. Researchers looked at aging on the molecular level.

Dr. Marie-Roseline Bélizaire says the United Nations is failing to keep its medical workers safe.

A sea creature in a Japanese aquarium goes on strike. It won't eat. Just totally refuses. What to do?

A mysterious die-off of freshwater mussels has scientists scrambling to find a cause. Freshwater mussels clean water and provide habitat to countless other species.

More than 6 million middle school and high school students used tobacco and nicotine products this year, according to a new federal report. Most are now using these addictive products by vaping.

NPR host Mary Louise Kelly interviews Rep. Doug Collins of Georgia, the top Republican on the House Judiciary Committee, about the impeachment inquiry into President Trump.

Democrats had offered to allow Trump to have attorneys representing him at future impeachment hearings in the House.

The new legislation purports to protect transgender rights — but many trans activists say it does the exact opposite.

Restaurants without diners are popping up all over the place. "Ghost kitchens" and menus that exist solely in smartphone apps such as DoorDash and Uber Eats seek to feed diners' appetite for delivery.

The enigmatic and reclusive producer Madlib joins hard-hitting emcee Freddie Gibbs for one of the most memorable Tiny Desks of the year.

Government officials say anti-vaccination advocates have complicated their efforts to turn the tide on an epidemic that has killed at least 63 people, most of them children.

Sylvia Grosvold was 5 years old when her mother died by suicide. At StoryCorps, Sylvia, now 16, tells her dad how she's processed the loss. "I guess I'm stronger than I think I am," she says.

From the politics to the presidents' counternarratives, there are a number of similarities between the events of December 1998 and the proceedings underway now against President Trump.

Within an hour of the first public alert, the Escambia County Sheriff's Office said, "The shooter is confirmed dead."

An American Muslim organization severed ties with its founder over allegations of abuse. It reignited a conversation among American Muslims about how to hold faith leaders accountable.