Lonely Sunfish in Japan Finds Comfort in Cardboard Human Companions

The Kaikyokan aquarium in Shimonoseki, Yamaguchi prefecture, recently implemented an unconventional solution to aid a lonely sunfish struggling with its health after the aquarium closed for renovations. The team decided to create cardboard cutouts of human faces, which they affixed to uniforms and placed in front of the sunfish's tank. This initiative was deemed a "last resort" by staff members concerned about its well-being, as the social fish had shown signs of distress in the absence of visitors.In an update shared via the aquarium's social media, it was noted that the sunfish began to regain its health after the introduction of these makeshift companions. Employees observed positive changes in the sunfish's behavior, stating it was “in good health again” just a day after the cardboard figures were installed. Initially, after the aquarium's closure in December, the sunfish exhibited concerning behavior, such as refusing to eat jellyfish and rubbing against tank walls. While staff initially suspected possible parasites or digestive problems, one keen observer proposed that the fish may simply have been lonely without its usual audience.Sunfish, which inhabit every ocean worldwide, are cherished in Japan yet are rare in aquariums due to their demanding care requirements. The Kaikyokan sunfish, measuring about 80cm (31 inches) in length and weighing nearly 30kg (66 lbs), had arrived at the aquarium one year earlier and was known for its curious demeanor, frequently swimming towards onlookers at the tank.After the addition of the cardboard cutouts, the sunfish reportedly displayed more lively behavior, appearing happier and “waving its fins” in a sign of improved spirits. The aquarium's post about the sunfish garnered significant attention on social media, with many users sharing their personal photos and videos captured during their visits, promising to return once the renovations were complete.The innovative approach of Kaikyokan is part of a broader trend among Japanese aquariums adapting to the emotional needs of their animals. For instance, during the pandemic, a Tokyo aquarium set up a video call to reconnect its eels with humans amid the absence of visitors, showcasing the importance of social interaction for the well-being of aquatic life.