Pelicans in St James’s Park, central London. The birds were introduced to the park in the 16th century. Getty
Tree-climbing goats feed on the leaves of an argan tree in Essaouira, Morocco. Getty
People feed wild rabbits on Okunoshima, also known as Rabbit Island, in Japan. In the 1920s the island housed to a chemical weapons plant. After the Second World War, Okunoshima was turned into a park and the bunnies were let loose. Alamy
A wallaby on Lambay Island in the Irish Sea. The animals were introduced to the island in the 1950s, and more came to the island from Dublin Zoo in the 1980s. Wikimedia Commons
The Baikal seal lives exclusively Lake Baikal in Siberia, Russia. Alamy
A pandemonium of parrots has lived in Telegraph Hill in San Francisco since the 1990s. Getty
Pig Beach in the Bahamas, which feral hogs have made their home. Getty