From the zoo to Missouri Air National Guard blue
                Casey Self, zoologist and 131st Bomb Wing Citizen-Airman, works with hippos ‘Liberty’ and ‘Labor Day’ in the Ruwenzori section of the Kansas City Zoo in Kansas City, Mo., Aug. 9, 2013. She utilizes hand signals, a clicker, and healthy treats to evoke certain responses, such as opening their mouths, which allow her to safely check on the dental health of the hippo. (U.S. Air National Guard photo by Airman Halley Burgess/Released)
                
                    
                        PHOTO BY:
                        Airman Halley BurgessRELEASED
                    
                    
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