Dogs’ lives may offer answers

By Dan McFeely, USA Today

Purdue University researcher David Waters hopes a bunch of old dogs will be able to teach scientists news tricks about aging and cancer.

Waters has embarked on a 23-day trek across the country to meet face-to-snout with 15 of the oldest-living Rottweilers in the United States. Waters, head of the Gerald P. Murphy Cancer Foundation at the Purdue Research Park, West Lafayette, Ind., has been leading a research team that studies aging and cancer in pet dogs. Over the past three years, the team has compiled a database of scientific data on 140 Rottweilers through breeders and fan clubs. Only 15 are still alive, prompting Waters to put together his “Old Grey Muzzle tour.”

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