Stock photography, photos: Dog resting Stock photos of PR Dog resting after a strenuous hike between the hiking boots of his master Photograph: © Klaus-Peter Wolf Click for a larger image and more information Keywords associated with this stock photo: anstrengender, den, erschöpft, Erschöpfung, Herren, Hund, nach, Natur, Pause, PR, Rast, rastet, Schlaf, schlafen, seines, Säugetier, Tier, Treue, Wandern, Wanderstiefel, Wanderstiefeln, Wanderung, Wolfshund, zwischen, after, animal, between, boots, break, Dog, exhausted, exhaustion, fidelity, hike, hiking, hiking boots, mammal, master, nature, PR, rest, resting, sleep, strenuous, wolf dog, kpw_zimen007_24382