(His own dogs are Great Danes ... he can teach us about life with the “wild” ones that share our home. Nat Geo Wild: Your 100th episode features insight into a variety of cases, from livestock ...

This story appears in the October/November 2016 issue of Nat Geo WILD magazine ... Oakley listens to the heart and lungs of Sambuca, a sled dog struggling with the heat. Photograph by National ...