The 7,000 year old remains of a dog discovered in Siberia reveal that it worked, ate and was buried as a friend of humans. Per the article: "Based on how northern indigenous people understand animals in historic times, I think the people burying this particular dog saw it as a thinking, social being, perhaps on par with humans in many ways," said Robert Losey, lead author of a study about the dog burial, which has been accepted for publication in the Journal of Anthropological Archaeology."

http://news.discovery.com/animals/ancient-dog-burial-siberia-110228...