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Saber teeth — the large fangs of saber-tooth cat fame — are fearsome. They evolved at least five times in predators that are now extinct, but there's been something of a mystery as to why.

Scientists in Antarctica have dug out ice that can be from as far back as 1.2 million years. NPR's Ayesha Rascoe talks to researcher Carlo Barbante, about what he hopes to learn from the ice.

"People have lost everything," says FEMA administrator Deanne Criswell. More than 24,000 have already applied for assistance from FEMA, but Criswell says that number is certain to rise.

Michigan contains the largest Lebanese American community and the city of Dearborn has the largest concentration of Arab Americans in the country. This battleground state could decide the election.

Neither Donald Trump nor Kamala Harris is talking a lot about their own religion on the campaign trail. But people of faith and religious leaders are talking about them.

House Minority Leader Hakeem Jeffries is campaigning in competitive districts across the U.S. with the goal of flipping control of the House of Representatives in the November election.

The National Institutes of Health, the crown jewel of biomedical research in the U.S., could face big changes under the new Trump administration, some fueled by pandemic-era criticisms of the agency.

Kitty lovers started a petition to reclassify cats as necessary to tackle rodents at New York City bodegas.

Researchers found that two individuals of a type of comb jelly can fuse and become one with a shared nervous system and digestive system. It has implications for animal regeneration and immune systems.

NPR’s Scott Detrow speaks with Martin Sheen and Melissa Fitzgerald about all things West Wing. Fitzgerald co-wrote a new book called What’s Next about the legacy of the show.