According to a July 6 paper in the Journal of Experimental Biology, brown trout (Salmo trutta) can get hooked on ecologically plausible amounts of meth. After eight weeks of exposure to ecologically plausible levels of methamphetamines, the fish tended to prefer meth-laced water over water without the drug.
LINK (via: The Scientists)
I’d been wondering why some of the very modest-sized browns of certain, rather more “Urban” than Rural, British streams had recently appeared to have started fighting their heads off….
https://youtu.be/R6CjCEyAJ2s