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Oldest dog debated

Fossil jaw may, or may not, come from oldest known example of man’s best friend

By
5:15pm, July 22, 2010

Every dog has its day, but that day took more than 14,000 years to dawn for one canine. A jaw fragment found in a Swiss cave comes from the earliest known dog, according to scientists who analyzed and radiocarbon-dated the fossil.

Dog origins remain poorly understood, however, and some researchers say that dog fossils much older than the Swiss find have already been excavated.

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