Berlin has a wild boar population of 3,000 to 5,000. The animals are becoming a nuisance

Wild boars have become so accustomed to city life in Berlin that they now cross the roads at traffic lights.

“I never cease to be astonished by how wild boars and their young deliberately choose pedestrian crossings to cross roads,” Derk Ehlert, the wildlife commissioner of the Berlin city government, said.

They are unlikely to have worked out the significance of red and green lights but have probably observed cars regularly stopping there and pedestrians crossing safely, according to biologists.

Foxes have a similar road sense. “If a fox wants to survive here in the city he has to learn such skills,” said Katrin Koch, at Nabu, a German nature conservation group.

Wild boars have also learnt to use train tracks to get across the