Japanese aquarium staff used cut-out human companions to cheer up a lonely sunfish, leading to improved health.

A solitary sunfish at an aquarium in southwestern Japan lost its appetite, and began banging into the side of the fish tank.

"When an aquarium in Japan closed to the public for restorations, the aquarium's beloved sunfish grew lonely without visitors ...

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The Kaikyokan Aquarium in Shimonoseki, Japan, which is undergoing renovations, revealed in a post on X that its staff had to think out of the box to help one of its sunfish struggling with the change.

Japan's Kaikyokan Aquarium staff discovered a sunfish was lonely during renovations, causing it to stop eating and act ...

A solitary sunfish at an aquarium in Japan lost its appetite, began banging into the side of the fish tank and appeared ...

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Within a few weeks of closing for renovation, their 30-plus kilogram ocean sunfish began exhibiting strange behavior.