Gay people really do have an inbuilt radar that helps them seek out like-minded souls, scientists have shown. This sixth sense, or 'gaydar', ensures they pay more attention to detail, allowing them to pluck potential partners out of a crowd. The Dutch researchers looked at whether straight and gay people focus their attention differently when faced with a problem. A total of 42 men and women were shown pictures of outlines of large squares and rectangles, each of which was packed with smaller shapes. Our brains are wired to take in the bigger picture, meaning that if we are...