Pumpernickel the dog is famous for his interplay with people and other dogs. Pumpernickel's owner, Bob Greene, began videotaping their park visits to see what he was seeing. He found a new way of looking at social interactions in an entirely non-linguistic world. "I never saw a pumpernickel or any dog the same way again"
Alexandra Horowitz—a canine psychologist and authority on how dogs perceive the world—joins to talk about her latest book, ‘The Year of the Puppy,’ and share her knowledge about the relationship between humans and our canine friends.