Prehistoric dog found with MAMMOTH bone in its mouth - does it prove they were man's best friend even then?

Må bare dele denne med resten av verden, var virkelig spennende lesning. Dem har funnet begravde hunder med mammut bein i munnen!

http://www.dailymail.co.uk/news/article-2046807/Prehistoric-dog-MAMMOTH-bone-mouth--does-prove-mans-best-friend-then.html