Amitriptyline Pollution Disrupted Male Guppy Spatial Learning
TL;DR: A 2026 study in Environmental Science & Technology found that male guppies exposed for 11 days to environmentally relevant amitriptyline, a tricyclic antidepressant detected in waterways, made more spatial-learning errors in a maze while females were largely unaffected. Key Findings 170-fish learning test: Researchers tested wild-caught male and female guppies across 12 maze trials …
