Video: The prostate-specific antigen test that men have come to expect at a certain age is not a good screening tool and does not routinely need to be done, according to the U.S. Preventive Services Task Force.
Video: Rick Stengel discusses the life of Steve Jobs. Walter Isaacson wrote the cover story on Jobs for the magazine's latest issue, and Isaacson visited with Jobs just days before his death at the age of 56.
Video: The first populations of Nylanderia pubens, the hairy crazy ant, were found in Hancock County, Miss., in 2009. By the following year, the ant could be found in at least seven sites in Jackson County, Miss.