In this May 20, 2011 photo, Chyba, a 12-year-old former military dog who served in Iraq with the Army, rolls over at the Rancho Coastal Humane Society in Encinitas, Calif. Madeleine Pickens, wife of ... more 
In this May 20, 2011 photo, Chyba, a 12-year-old former military dog who served in Iraq with the Army, rolls over at the Rancho Coastal Humane Society in Encinitas, Calif. Madeleine Pickens, wife of billionaire T. Boone Pickens, adopted her dog, Chyba, last year. War dog organizations say the number of inquiries from people asking about military working canines has risen dramatically. less 
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Associated Press | Photo By Gregory Bull
Tue, May 24, 2011 2:33 PM EDT