Ed. Note: The following is a script of "The Smartest Dog in the World" which first aired on October 5, 2014. John Pilley, a scientist and psychology professor, is featured in the story. He trained his ...

Many owners struggle to teach their dogs to sit, fetch or even bark on command, but John Pilley, professor emeritus of psychology at Wofford College, taught his border collie to understand more than 1 ...