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Harbor seals use sensors in their whiskers to help discern predator from prey. It's all about the way the water whirls, say scientists who are now training computers to be better trackers, too.

The U.S. has the highest rates of sexually transmitted disease cases in the industrialized world, say health trackers, with chlamydia, gonorrhea and syphilis reaching 2.3 million cases in 2017.

A watchdog says a government agency failed to disclose the involvement of President Trump in a decision not to move the FBI out of its location in Washington, D.C., next to a hotel the president owns.

Sen. Lindsey Graham, R-S.C., said that Sen. John McCain, who died on Saturday, was successful in spite of his political failures.

There are two high-stakes GOP primary contests this Tuesday. In Arizona, it's a Senate race to replace Sen. Jeff Flake and in Florida, it's a race for the state's next governor.

NPR's Ailsa Chang talks with comedian Melinda Hill about whether Louis C.K. should have a future in comedy. Hill says he needs to give a more robust apology and work toward making amends.

A Stanford research team finds that ketamine's ability to quickly relieve depression may depend on activating the brain's opioid system. The finding raises new questions about the drug's safety.

Smoke from wildfires is blanketing much of the West. That's ruining some crops and may be stunting others. And it's making it difficult or unsafe for laborers to pick the harvest.

Hundreds have been arrested or disappeared since the Ortega regime launched a crackdown on protesters. President Ortega has relied heavily on pro-government paramilitaries to make the arrests.

"I think a lot of people struggle with being truly alone," Gallo says. The garage rocker's latest video is a look at what solitary meditation feels like.