Animals Learn to Help Army Specialist Antonio Ingram gets a kiss from Emma, one of the therapy dogs that work with soldiers at Fort Hood, Texas (Flaherty, 2011, October 29). Therapy animals like Emma help ease the stress of wounded veterans, abused children, cancer patients, and others suffering from psychological distress (American Humane Association, 2013). The dogs are trained using the principles of learning.

AP Photo/The Killeen Daily Herald, Marianne Lijewski