These fish may feel pleasure while being groomed by other fish 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. Ari Daniel
Confusion, explosive anger and waiting: NPR spent a day in New York immigration court Dozens of immigration courts across the country have become epicenters of the Trump administration's efforts to increase the rate of immigration arrests. Ximena Bustillo
How a nurse's call eased a daughter's burden Ashley Ludlow's mother passed away in the hospital in 2005. She had followed her mother's wishes and asked that she not be resuscitated. That decision weighed heavy on her until a nurse reassured her. Autumn Barnes
Are weighted vests good for bones and muscle? Fact-checking a fitness trend It's a growing fitness trend. People say wearing a weighted vest when you exercise builds bones, strengthens muscles and improves cardiovascular health. But does research back up these claims? Katia Riddle
A retired general recalls Hurricane Katrina's chaos and lessons still unlearned Twenty years after Hurricane Katrina, retired Lt. Gen. Russel Honoré, who led recovery efforts as commander of Joint Task Force Katrina, urges people to be prepared for future disasters. Michel Martin
U.K. migrant protests spark angry confrontations as government scrambles to respond Immigration has become a political flashpoint as countries across the West try to cope with an influx of migrants seeking a better life. The Associated Press
SpaceX postpones 10th test launch of massive Starship rocket SpaceX wants to put the two-stage rocket's massive booster through its paces. On Sunday, it postponed the launch "to troubleshoot an issue with ground systems." Nell Greenfieldboyce
Millions in West facing dangerous heat wave amid multiple wildfires Parts of California, Oregon and Washington state will experience extreme heat at least through Tuesday, forecasters say. Chandelis Duster
Illinois officials blast Trump's threat to deploy National Guard in Chicago Earlier in August, Trump deployed hundreds of National Guard members to Washington, D.C., as part of what he touted as an effort to reduce crime and root out homelessness. Joe Hernandez
It was the costliest hurricane in U.S. history: Have we forgotten Katrina's lessons? Nearly 1,400 people died after Hurricane Katrina crashed into Louisiana and Mississippi. Most of the deaths were in New Orleans, which has had an uneven recovery in the past 20 years. Greg Allen