Plenty of primates laugh, but only humans fake it. So what are we getting out of that phony chuckle? Perhaps an unfair advantage at work and in social situations, researchers say.
Bicyclists account for a just a small percentage of commuters in the U.S., but their numbers have grown by nearly 60 percent over the last decade as cities become more bike-friendly.
If an agent kills a Mexican across the border, what happens? Some argue not enough. It's hard to sue in these cases, and reports show the Border Patrol is rarely holding its own people accountable.
After 53 years on television, ABC's Barbara Walters is retiring from her work on-camera. Steve Inskeep talks to the ground-breaking broadcaster about her life, career and impact on television news.
The suggestion last month that the FCC might let Internet providers charge companies more for faster service prompted a firestorm of protest. The commission votes Thursday to begin debate on the plan.
Last fall, a University of Kansas professor criticized the National Rifle Association in a tweet. Wednesday, the Kansas Board of Regents approved a strict social media policy for university employees.
Residents of eastern Ukraine are trying to figure out what happens next, now that pro-Russian separatists have claimed independence. But there's even disagreement over what's feasible.
Corporate sponsorship of professional events for nutritionists has been on the rise. But should the gatekeepers of nutrition information be taking free meals and snacks from McDonald's and Hershey's?
A second case of the new Middle East Respiratory syndrome has shown up in the U.S. The virus has been spreading through Saudi hospitals. Health officials expect more cases to appear here.
Gazprom, the energy company, has dramatically raised the price it charges Ukraine for natural gas. Despite its weak, ailing economy, Ukraine must now pay far more than any other Gazprom client.