One of photographer Stephen Dalton's first assignments, in the 1960s, was a book about honeybees. His discovery that insect flight had never been clearly caught in a still photo launched both an obsession with solving this problem and an award-winning career. The results, building on recent advances in high-speed photography, are a highlight of his latest book Secret Worlds (Firefly, $35). In 125 colour photos, each with explanatory text, some animals are seen hiding or resting. But Dalton's fascination with capturing movement creates the most memorable images: the agility of a diving vole, a cockchafer coming in to land, the aerial manoeuvres of bats, and the astonishing sight of a basilisk running across water.