This is so interesting to me, how moscow's stray dogs are adapting to their envionment. Even using the subway its crazy.

For every 300 Muscovites, there's a stray dog wandering the streets of Russia's capital. And according to Andrei Poyarkov, a researcher at the A.N. Severtsov Institute of Ecology and Evolution, the fierce pressure of urban living has driven the dogs to evolve wolf-like traits, increased intelligence, and even the ability to navigate the subway.

check out this article for more.

http://www.popsci.com/science/article/2010-01/moscows-stray-dogs-evolvin...