Frag, I'm sorry, but you are making little to no sense. The internets are large. The source for refuting hoaxes are many. There are a large number of articles about Russian subway dogs, and no refutations. There's also a named source studying them, biology professor Andrew Poyarkov of Lomonosov Moscow State University.

And yet you seem to be arguing that a lack of refutation means this is a hoax. Explain, please?