Dog training has evolved considerably and there's a lot to know about selecting a trainer.

Jean Donaldson is the director of the Academy of Dog Trainers at the San Francisco SPCA and she has a lot to say about the field. Learn what to look for in a trainer and what to avoid. As the author of "The Culture Clash" and "Dogs are from Neptune", Jean provides insight into how dogs think and why they behave the way they do. In this episode of "Good Dog" podcast, Jean and Joanne discuss why dogs eat poop and smell each other's behinds.