Sakakibara Kikai's engineer Go Sakakibara poses with the bipedal robot Mononofu during its demonstration at its factory in Shinto Village, Gunma Prefecture, Japan on April 12, 2018. Developed at Sakakibara Kikai, a maker of farming machinery, LW-Mononofu is a 28-feet tall, two-legged robot weighing in at more than 7 tonnes. It contains a cockpit with monitors and levers for the pilot to control the robot's arms and legs. (Photo by Kim Kyung-Hoon/Reuters)

An undated handout picture released on January 10, 2017 by the Issekinicho publishing house shows an inter- species sexual behaviour between a male Japanese macaque and female sika deer, in Yakushima Scientists revealed on January 10, 2017 the “highly unusual” behaviour of a male monkey filmed trying to have sеx with female deer in Japan – a rare case of inter- species nookie. (Photo by Editions Issekinicho/AFP Photo)

In this April 28, 2015 file photo, heads of tuna on a cart are carried by a fish dealer after the day's auction at Tsukiji Wholesale Market in Tokyo. In one of the biggest of Japan's many New Year holiday rituals, early on Tuesday, January 5, 2016, Tokyo's Tsukiji market will auction off with much fanfare a huge, glistening tuna, likely destined for one of the big sushi chains. If all goes as planned, it will be the last such auction at 80-year-old Tsukiji. (Photo by Shuji Kajiyama/AP Photo)

Members of the South Korean Confederation of Trade Unions (KCTU) perform with traditional Korean masks during a rally against the government's Labor Policy in Seoul, South Korea, 06 July 2023. South Korean Confederation of Trade Unions (KCTU) begen a general strike on a national scale from 03 July against the South Korean government's labor policy and against Japan's disposal of treated radioactive water from the Fukushima nuclear power plant into the sea. (Photo by Jeon Heon-Kyun/EPA)

Women's Freestyle 50kg wrestling gold medalist Sarah Hildebrandt of Team United States carries Men's Greco-Roman 77kg wrestling gold medalist Nao Kusaka of Team Japan on stage on day thirteen of the Olympic Games Paris 2024 at Champions Park on August 08, 2024 in Paris, France. (Photo by Luke Hales/Getty Images)

This picture taken on September 14, 2024 shows Filipina wrestler “Crystal” fighting her opponent Yuki Kamifuku of Japan (not pictured) during a Middle Kingdom Wrestling (MKW) championship event in Shanghai. Despite a promising potential domestic market, the Chinese pro wrestling community has been battling for recognition and financial stability for decades. (Photo by Wang Zhao/AFP Photo)

People sit next to an art installation during the “Plastic Dinoland” exhibition by Japanese artist Hiroshi Fuji, in Hanoi, Vietnam, 17 March 2025. The exhibition, which features colorful installations of dinosaurs made from discarded toys, runs from 15 March to 01 June 2025 at The Japan Foundation in Hanoi. (Photo by Luong Thai Linh/EPA/EFE)

An Asian elephant swims in a pool with transparent sides at Fuji Safari Park in Susono city of Shizuoka Prefecture on August 8, 2024. Paddling with chunky legs and using their trunks as a snorkel, the elephants at Fuji Safari Park in Japan are taking a dip in their summer swimming pool – with each graceful movement visible thanks to a special see-through tank. (Photo by Yuichi Yamazaki/AFP Photo)