Wild dogs that commute from suburbs to scavenge in city The clever canines board the Tube each morning. After a hard day scavenging and begging on the streets, they hop back on the train and return to the suburbs where they spend the night.

Experts studying the dogs say they even work together to make sure they get off at the right stop — after learning to judge the length of time they need to spend on the train. The mutts choose the quietest carriages at the front and back of the train. They have also developed tactics to hustle humans into giving them more food on the streets of Moscow.

Dr Poiarkov told how the dogs like to play during their daily commute. He said: “They jump on the train seconds before the doors shut, risking their tails getting jammed. They do it for fun. And sometimes they fall asleep and get off at the wrong stop.” The dogs have learned to use traffic lights to cross the road safely, said Dr Poiarkov. And they use cunning tactics to obtain tasty morsels of shawarma, a kebab-like snack popular in Moscow.