The latest science also reveals why budgies talk, how a cat scales a vertical wall with the help of a special claw, hamsters stuff their faces with more food than they can eat and the real meaning behind a rabbit’s hop. Our pets are also given a chance to explore their wild side as we join the free-roaming pet dogs of Cusco Peru, pet rabbits living in a natural warren and the wild-living inhabitants of Cat Island, Japan. A range of innovative techniques such as moving X-rays, thermal imagery, minicam-carrying dogs and revelatory slow motion photography shows why our pets play and how their true wild nature is just a whisker away.