In a Feb. 14, 2013, photograph, Elmo the cat lets out a meow while being exercised in a pool last week at the University of Tennessee College of Veterinary Medicine in Knoxville, Tenn. The seven-year-old feline, who tipped the scales at over 24 pounds in mid-January, is taking part in the college's Canine Arthritis Rehabilitation Exercise Sports Medicine program in an effort to lose weight. (AP Photo/Paul Efird, Knoxville News Sentinel)

Paul Efird