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Naki'o lost the lower parts of his four legs as a puppy, but Martin Kaufman of OrthoPets designed and attached four prosthetic legs for him that mimic the natural movements of dogs. Now he can get run around like a normal dog! http://www.incrediblefeatures.net/blog/2011/06/nakio-the-first-dog-with-four-prosthetic-paws/ -via Geekosystem | OrthoPets