When Japan’s Kaikyokan Aquarium closed for renovations, a giant sunfish began experiencing health problems, stopped eating, and rubbed against its tank walls. To help, staff placed cardboard cutouts of people “watching” it. The next day, the fish regained its appetite and became more active.
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Posted in r/Damnthatsinteresting by u/kingkongsingsong1 • 781 points and 9 comments
The original post: /r/damnthatsinteresting by /u/kingkongsingsong1 on 2025-01-21 20:30:40.

Original Title: When Japan’s Kaikyokan Aquarium closed for renovations, a giant sunfish began experiencing health problems, stopped eating, and rubbed against its tank walls. To help, staff placed cardboard cutouts of people “watching” it. The next day, the fish regained its appetite and became more active.