‘We’re polar opposites and that’s why our relationship works’

• Eighties pop star Paula Abdul famously convinced a generation that Opposites Attract with her Number One single of that name. But this week, scientist Tanya Horwitz, from the University of Colorado Boulder, put a giant dampener on the idea. Causing equal measures of delight and consternation, Horwitz announced that it’s birds of a feather that successfully flock together.