Air Force Staff Sgt. Nicholas Gray, 325th Security Forces Squadron military working dog handler, and his partner, Mmcenroe, pose for a photo after a scent trail exercise on Tyndall Air Force Base, Florida, Feb. 23, 2021. Scent trails are used to test the dog's ability to find planted items in unexpected places.

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Size: 1936px × 1291px
Photo credit: © Operation 2021 / Alamy / Afripics
License: Licensed
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