Article Photos: Labrador retriever from Norman is American Kennel Club's 2013 national agility champion 1/5

Henry, a black labrador and recent American Kennel Club national champ for agility, works with his owner Dennis Butler on Thursday, April 18, 2013 in Norman, Okla.  Photo by Steve Sisney, The Oklahoman <strong>STEVE SISNEY - THE OKLAHOMAN</strong>