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Story summary
- Researchers in Canada, including Dayna Forsyth of Acadia University, found a low dose of psilocybin reduced aggressive swimming bursts in mangrove rivulus fish after 20 minutes.
- The dosed fish was placed with an undosed fish behind a mesh barrier.
- The 2026-05-07 Frontiers in Behavioral Neuroscience study reported fewer bursts but unchanged head-on displays.
- Suzie Curie of the University of British Columbia called it evidence that psilocybin reduces escalated conflict.
