News in Brief Redefining the Youth Bloc: Giving 16-Year-Olds the Vote A decision to lower the voting age from 18 is making waves in Argentina. See More
News in Brief A Personalized Tweak Helps Homelessness Programs Work Even Better Over the last two decades, North American cities have been giving homeless people a place to live before any other treatment. The programs mostly work, but now researchers are seeking improvements. See More
News in Brief Why — and When — Did Early Humans Leave Africa? New studies suggest multiple migrations over the last 120,000 years, but doubts remain. By Nathan Collins Anatomical comparison… See More