All of Samuel Wasser's scat-scenting dogs are trained at the Center for Conservation at the University of Washington. And almost all of those dogs are rescued from the pound. "Our dogs have to be absolutely obsessed with playing with a ball as a reward," says the director of the program. "Everyone thinks they have a ball-crazy dog, but these ones are way over the top. It's often the reason they end up in the pound. They're almost always unadoptable because they're so intense."
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