The integration of animals into the therapy setting by psychotherapists has been a growing trend. Psychological problems treated include emotional and behavioral problems, attachment issues, trauma, and developmental disorders. An influential 1970s survey suggests that over 20 percent of therapists in the psychotherapy division of the American Psychological Association incorporated animals into their treatment in some fashion. Anecdotal evidence suggests that the number is much higher today. Since Yeshiva University psychologist Boris Levinson popularized the involvement of animals in...