American professional wrestler Jade Cargill visits The Empire State Building on July 31, 2025 in New York City. (Photo by Roy Rochlin/Getty Images for Empire State Realty Trust)

A doll's face is covered with supportive messages for government-proposed reforms during the International Workers' Day march in Bogota, Colombia, May 1, 2024. (Photo by Fernando Vergara/AP Photo)

American singer-songwriter Taylor Swift speaks to a kid onstage during “Taylor Swift | The Eras Tour” at Johan Cruijff Arena on July 04, 2024 in Amsterdam, Netherlands. (Photo by Carlos Alvarez/Getty Images for TAS Rights Management)

American model and socialite Hailey Bieber shows off her figure while rolling around in the sand on November 20, 2025. (Photo by haileybieber/Instagram)

Indian commuters travel in a local train in Kolkata, India, Tuesday, February 26, 2013. Indian Railway Minister Pawan Kumar Bansal is presenting the country's rail budget for next fiscal year in the parliament Tuesday, Feb. 26, 2013. Indian railway network is one of the world's largest, with some 14 million passengers daily and some 64,000 kilometers (40,000 miles) of railway track cut through some of the most densely populated cities. (Photo by Bikas Das/AP Photo)

A man dressed as a Santa Claus poses at the front of the Kollhoff Tower at Potsdamer Platz square in Berlin December 14, 2014. (Photo by Hannibal Hanschke/Reuters)

A mechanical horse-dragon made of wood and steel is presented to the public in Nantes, western France on August 26, 2014. This horse-dragon, created by the French artist Francois Delaroziere of “Les Machines de l'île” (The Machines of the Isle), is the hero of the show "Long Ma" which will be presented in Beijing on October 17, 2014 as part of the fiftieth anniversary of the relationship between France and China. (Photo by Jean-Sebastien Evrard/AFP Photo)

Only after World War II did the secret spill: 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.