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An experiment with threadfin butterflyfish finds that these fish may experience pleasure while being cleaned by bluestreak cleaner wrasse — suggesting this capacity goes far back in animal evolution.

Gen Z protesters from Indonesia and Nepal to Madagascar and Morocco, are rallying behind an unexpected banner: a grinning skull in a straw hat.

Research links kids' use of social media with depression and anxiety. A lot of content online isn't appropriate for kids, and there's not much keeping them from accessing it.

Pamela Melroy, former Deputy Administrator of NASA, talks about the importance of NASA to U.S. interests amid concerns about proposed budget cuts.

Over recent months, X subscribers who use Elon Musk's Grok chatbot may have noticed a shift in the AI bot's answers.

Across the United States, people are learning what is and is not functioning on the first day of the government shutdown.

National Guard troops and federal agents have a visible presence in Washington, D.C., and now President Trump has threatened to send them into Chicago.

With the number of survivors rapidly declining and their average age now exceeding 86, this year's anniversary is considered the last milestone event for many of them.

The Tokyo Grand Sumo Tournaments comes to an end this weekend.

China will host the leaders of Russia and China at a security summit starting on Sunday. NPR's Scott Simon talks to Satu Limaye from the East-West Center about the significance of that alliance.