Proceedings of the National Academy of Sciences

(Newser) - Researchers have found what they say are specialized bone tools made by Neanderthals in Europe thousands of years before modern humans are thought to have arrived to share such skills, a discovery that suggests modern man's distant cousins were more advanced than we thought. In a paper published yesterday...

(Newser) - One of the world's deadliest viruses has been made safe for researchers, speeding up the process of finding drugs and a vaccine, the Wisconsin State Journal reports. University of Wisconsin scientists developed a safe strain of the Ebola virus by removing one of its eight genes. "Now we have...

(Newser) - A gene found in 90% of the human race helps explain why breast-fed babies are more intelligent than infants raised on bottled milk, scientists have discovered. Researchers found that the IQs of children who had been breast fed were 6 to 7 points higher than bottle-fed babies—but only if...