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Dog days of summer: So what in the world is my dog thinking?

In this March 19, 2013 photo, Heidi Schulman poses for a photo with her rescue dog, Bosco, in Santa Fe, N.M. Bosco inspired her to develop "The Original Dog Tarot: Divine the Canine Mind," to help people better connect with their pets. It's an age-old and seemingly answerless question: What in the world is my dog thinking? It has generated a growing market of scientific research, radio and television shows, books by pet psychics, even pet tarot cards. (AP Photo/Jeri Causing)