Without its usual crowd of spectators, Kaikyokan’s sunfish essentially started to fall into a deep-sea depression.

Staff had noticed that the sunfish was showing signs of distress after the aquarium was closed for refurbishment ...

An aquarium in Japan closed Dec. 1 for renovation work, much to the apparent dismay of a lone sunfish. It missed people and ...

Staff members believe the sunfish stopped eating when the aquarium was temporarily closed because it was lonely.

Fish have feelings too – at least if a lonesome sunfish in a Japanese aquarium is anything to go by. Animal caretakers at the ...