In this Nov. 13, 2014 photo, patients Nathaniel Lopez, left, and Araceli Morales pet Lunar one of two miniature horses from 'Mane in Heaven' that made a visit to the pediatric unit at Rush University Medical Center in Chicago. Mystery and Lunar, small as big dogs, are equines on a medical mission, to offer comfort care and distraction therapy for ailing patients. It is a role often taken on by dogs in health-care settings _ animal therapy, according to studies and anecdotal reports, may benefit health, perhaps even speeding healing and recovery.(AP Photo/M. Spencer Green)
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