https://www.newscientist.com/article/2283296-fish-are-becoming-addicted-to-methamphetamines-seeping-into-rivers/?utm_campaign=RSS%7CNSNS&utm_source=NSNS&utm_medium=RSS&utm_content=news
Methamphetamines and other drugs can enter freshwater rivers through wastewater, and lab tests show trout can become addicted, changing their behaviour by reducing their activity levels