Maria Paz Gutierrez

It's easy to see why sloths have become icons of laziness. But zoologist Lucy Cooke says behind their leisurely pace is a marvelous evolutionary advantage that is the secret to their survival.

Over 30 million people in the U.S. have hearing loss. Neuroscientist Jim Hudspeth explains how the ear's thousands of hair cells function to amplify sound—and how they can be damaged but not repaired.

David Byrne says "context has a huge effect on creativity." He draws on his time with Talking Heads, as well as Bach, Gregorian chant, even birds—to show how spaces affect the music we write and play.

In 2016, Chile passed gratuidad, or "free college." As the idea gains popularity ahead of the 2020 presidential election in the U.S., Chile offers some lessons from what has happened there.

The Petronio Alvarez festival is the big event of the summer — five days of music and food and fashion. More than 100,000 people travel to celebrate Afro-Colombian culture.

In 1968, Congress passed the Fair Housing Act, which made it illegal to discriminate in housing. Gene Demby of NPR's Code Switch explains why neighborhoods are still so segregated today.

The NCAA men's basketball tournament will bring in about $770 million in revenue this year. A writer argues that paying black student-athletes might have unforeseen consequences.

As Oakland's legal cannabis industry grows, the biggest players seem to have two things in common: They're white, and they have lots of money.

The unrest in the Motor City a half-century ago this summer left 43 dead. It was one of the most devastating episodes of civil conflict in the 20th century. But was it a riot or a rebellion?