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A drop in the numbers of fierce beasts worldwide might seem like good news for deer and antelope. But expanding herds of grass-eaters leave stream banks naked and vulnerable to erosion, and can even change the stream's course, according to scientists calling for more protection of large predators.

The Microsoft founder and philanthropist talks with NPR's David Greene about why he's spent billions on health efforts in developing countries, and about the prospect of beating polio and malaria.

Prompted by calls for violence on the radio, South Sudanese rebels have slaughtered hundreds of civilians. Melissa Block speaks with UN representative in South Sudan, Toby Lanzer.

The transition from one part of the world to another is filled with anticipation, conflict and drama. These trips can herald life-changing transformations for families seeking out better lives.

Reviewer Alan Cheuse takes on two new thrillers, David Ignatius' ripped-from-the-headlines cyber-adventure The Director, and former BBC China correspondent Adam Brookes' fiction debut, Night Heron.

The World Cup begins Thursday in Brazil. The U.S. team has its first match against Ghana the following week, the start of the so called "group of death."

Volatile weather has led to supply and price shocks that have rippled through 16 industries dependent on corn. From the meat industry to the ethanol industry, prices are higher for consumers.

Brazil and Croatia face off in the first game of the 2014 World Cup. Organizers hope the start of the tournament directs attention back on the field and away from the problems in preparation.

Billions of dollars disappeared from Ukrainian coffers during President Yanukovych's presidency. Stolen asset recovery expert Stuart Gilman tells Linda Wertheimer most of the money won't be recovered.

In Tuesday's Senate GOP primary, there's little ideological difference between the top candidates, and no one can lay exclusive claim to Tea Party support.