犬は人類最古の仲間であることがDNAで明らかに

Dogs are humans’ oldest companions, DNA shows | BBC NEWS

A study of dog DNA has shown that our “best friend” in the animal world may also be our oldest one.
The analysis reveals that dog domestication can be traced back 11,000 years, to the end of the last Ice Age.
This confirms that dogs were domesticated before any other known species.
Our canine companions were widespread across the northern hemisphere at this time, and had already split into five different types.
Despite the expansion of European dogs during the colonial era, traces of these ancient indigenous breeds survive today in the Americas, Asia, Africa and Oceania.Dogs are humans' oldest companions, DNA shows | BBC NEWS