LifeWhy food is rarely the simple pleasure it once was An exhibition at London's Science Museum and a philosophising book explore our desire for food, while another new book exposes the food industry's dark secrets CultureLab
EnvironmentFeathered apes who say thanks with shiny trinkets The eight-year-old girl showered with gifts by crows is not the only recipient of avian generosity, says crow and cognition expert Nicola ClaytonComment