At six inches long, Tom Thumb is not much bigger than a hamster. But this chihuahua-Jack Russell mix may set the record as the smallest pup on the planet.
Images 1-6 of 6
 Six Inch Dog |  Little Dog, Big Record |  Beloved Runt |  Pup in a Cup |
 A Tail Waggin' Good Time |  A Real Handful |
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