A 21-year-old chihuahua in Florida is being crowned the world's oldest dog. Guinness World Records says TobyKeith of Greenacres won the title after the previous record holder, a 22-year-old fox terrier from South Carolina, passed away earlier this month. Owner Gisela Shore says good genes, a healthy diet and a loving home are the secrets to TobyKeith's old age. He also enjoys trips to the park and going for car rides.
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