A rescued fox has undergone brain surgery at a British vets in the first operation of its kind in the world. The cub, named Hazel by rescuers, was found at the side of the road in Maidstone, Kent, lying next to her mother who had been killed by a car. Rescuers rushed the six-week-old fox cub to Kent Wildlife Rescue Service where volunteers noticed she had an enlarged forehead. As she grew, she began suffering seizures and was diagnosed with hydrocephalus, which causes fluid to build up around the brain.