At least 125 people were killed in an attack on a market in a Nigerian village near the Cameroon border. The violence is suspected to be the work of Islamist extremist group Boko Haram, which has also claimed responsibility for abducting more than 250 girls from a school last month.
CNN says that the attack targeted "an area that troops had been using as a base in the search" for the kidnapped girls.
A day after Russian President Vladimir Putin told separatists in Ukraine they should postpone a referendum on secession, leaders of the group say they'll hold the vote this Sunday as planned.
The decision was announced by a committee heading the so-called Donetsk People's Republic in eastern Ukraine. The group held a news conference Thursday to say they would go ahead with plans to hold the vote.
There's a long-held assumption that women are more likely than men to collaborate. As the number of women in Congress has increased, however, so has the partisanship and gridlock. So does a woman's touch actually help on Capitol Hill?
There's a lot of academic research that supports the idea that women are better at building bipartisan coalitions. Studies have found that women in Congress not only sponsor more bills but also collect more co-sponsors for those bills.
In the future, Earth's atmosphere is likely to include a whole lot more carbon dioxide. And many have been puzzling over what that may mean for the future of food crops. Now, scientists are reporting that some of the world's most important crops contain fewer crucial nutrients when they grow in such an environment.