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Why are some songbirds so brightly colored? A new study finds that a hidden layer of black and white feathers help their colors pop.

Nebraska’s highest court ruled against top state officials as it upheld a law providing felons with a path to register to vote after completing their sentences.

After the Sept. 11 terrorist attacks, life changed along U.S.-Mexico border towns as border security became a top priority. There's been a thaw, and runners again ran a 10K between El Paso and Juarez.

Starting next week, Verizon customers can choose from a slimmed-down menu of options for a lower price. It's a big change for the industry, which has resisted flexible pricing models for years.

NPR Music's Stephen Thompson reports on Madonna, Springsteen and Journey's return to the charts.

Sea-level rise is so acute in South Florida that local governments are eyeing hundreds of millions in spending to mitigate floodwaters. But wealthy foreign investors don't seem fazed.

The bidding period has closed for the companies hoping to design and deliver the president's signature campaign promise. Here's a glimpse of some proposals — from wire mesh to 30-foot pipe organs.

The FBI this week may release some of the evidence against Bruce Ivins, a U.S. government researcher who was under investigation for the anthrax attacks of 2001. He killed himself last week. Investigators have told NPR they were still several major legal steps away from an indictment.

During a confirmation hearing, senators asked Dr. Casey Means about her current positions and her past statements on a range of public health issues.

Cutting greenhouse gas emissions rapidly and immediately will save lives, livelihoods and ecosystems around the world, scientists say. And there are lots of ways to go about it.