As many as 35,000 stray dogs live in Russia’s capital city. Some of Moscow’s stray dogs have figured out how to use the city’s immense and complex subway system, getting on and off at their regular stops.Moscow’s strays have also been observed obeying traffic lights.

Strays have developed a variety of techniques for hunting food in the wild metropolis.

Sometimes a pack will send out a smaller, cuter member apparently realizing it will be more successful at begging than its bigger, less attractive counterparts.

Another trick researchers report seeing is the bark-and-grab: a dog will suddenly jump up behind a person in the street who is holding some snack, enough of a surprise that the food gets dropped for the grabbing.