Dogs could have been pets for 35,000 years

Scientists at Durham University are trying to find out when dogs first became domesticated. They are examining bones from ancient remains of wolves and dogs. It's believed they could have been pets for as long as 35,000 years.

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Pet Dog: A 35,000 year history?

Scientists at Durham University are researching the history of the pet dog. They are examining DNA from the ancient remains of wolves and dogs.