Hussman Sheep
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A guard llama keeps a watchful eye on visitors at the Hussman Ranch in Gardnerville, Nev., on Thursday, Jan. 13, 2011. Llamas are used to protect sheep from predators like coyotes and dogs. Four generations of Hussmans have raised sheep at the Carson Valley ranch dating back to the 1860s. .Photo by Cathleen Allison
Cathleen Allison