The city of Moscow, Russia hosts a large population of free-ranging dogs. Many operate in packs and have become accustomed to seeking food from passersby. Some of them who frequent or inhabit the subway have attracted international attention for learning how to use the trains to commute between various locations. The most famous Muscovite street dog is Laika (Russian: Лайка) who ended up being of the first animals in space and the first to orbit the Earth.