Read the text about wildlife in London.
To their surprise, scientists discovered that the mosquitos adapted to the underground environment so much that they have evolved into their own unique species. Scientists think that they were brought on underground trains from Heathrow airport and that they arrived to the airport on planes from other countries. The London underground is also home for about half a million mice.
One of the most unusual animals that was found in London was – a fox. The builders caught it on the 72nd floor of the unfinished skyscraper.
Having less and less living space is not the only reason for moving animals into the cities - animals go where there is food so cities have become homes for all sorts of species, from the cute to the dangerous ones. Scientists have discovered that small mammals that have moved into the cities have bigger brains compared to rural mammals. They think this is because these animals had to adapt to different food sources, threats, and landscapes. Who knows – this might be a new step in the evolution of species.