Ōkunoshima, located in the Inland Sea of Japan between Hiroshima and Shikoku, was the top-secret site for manufacturing chemical warfare. When the factories were closed down, a number of exotic wild rabbits were seen freely roaming the island. They were assumed to have been the test subjects for the chemical weapons, which the military failed to eradicate when the factory was demolished.
Bunnies’ population has grown to over 300 and counting, affectionately preserved by the tourism board by banning the entrance of any cats, dogs, or other potential predators from the 700,000 square-meter island. They can be found in any corner, and are very friendly.