No, not that one but the one were they kept intermixing different breeds for use in crime fighting and bomb sniffing. They found that it kept maintaining too much of its wild side from its breeding with whatever wild dog they used and had to breed in more passive tame breeds.
Here it is, they used a turkmen jackal for it;
http://europuppyblog.com/item/2008/03/russian-airlines-develop-a-super-sniffing-dog-breed
Ahhhh...thank you! I was trying to find something about that dog-jackal hybrid. I was thinking of it when mentioning the Russian dog-fox hybrid.
The Golden or Common Jackal (which includes the "turkmen") is species Canis aureus. Wolves and dogs are species Canis lupus. So the Russian hybrid is an example of two different species being able to interbreed.
There are plenty of other examples, including horses and zebras