Like this one. Actual study looked into fish’s reaction to cocaine and cocaine metabolites. It proves the need for human cocaine metabolites to be cleaned from waste management sources before being put somewhere they can reach fresh water sources. Everyone covered it as scientists giving fish cocaine to see what would happen.
https://www.science.org/content/article/cocaine-pollution-gives-salmon-wanderlust
Like this one. Actual study looked into fish’s reaction to cocaine and cocaine metabolites. It proves the need for human cocaine metabolites to be cleaned from waste management sources before being put somewhere they can reach fresh water sources. Everyone covered it as scientists giving fish cocaine to see what would happen.