Do you know what dogs can do in life?

@ml4box (336)
China
September 1, 2008 8:04am CST
there are kinds of pretty dogs in our life. as we know, dogs are more than just pets.in fact, many humans depends on dogs to live. there are cancer sniffing dogs,seizure dogs, seeing eye dogs or guide dogs, therapy dogs... Do you know what dogs can do in life?
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