Footage has emerged of a lion running and smashing his head on a window as he tires to attack a dog at the Indianapolis Zoo, IN, USA.<br /><br />The video, shot on August 28, shows the lion walking along the window pane, trying to catch the pet. <br /><br />"My service dog, Jetson, was a magnet to the lion cubs," the filmer wrote online. <br /><br />"One of them immediately ran over and smashed his head into the glass, the zoo keeper said that they run into the glass all the time."<br /><br />"We had a whole crowd around Jetson and the lions," he added.
