Unfortunately, there's no link to the actual study, but at least I can post the article.
Dogs have been man's best friend 'for 40,000 years'
Dogs have been man's best friend 'for 40,000 years'
Dogs have been man's best friend for up to 40,000 years, suggests new research.
The study shows dogs' special relationship with humans might date back 27,000 to 40,000 years.
The findings, published in the journal Current Biology, come from genomic analysis of an ancient Taimyr wolf bone.